![Page 1: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/1.jpg)
Structure theoryOperator spaces
(DN)− (Ω) type conditions for Fréchet operatorspaces
Krzysztof Piszczek
Adam Mickiewicz UniversityPoznań, Poland
e-mail: [email protected]
Banach Algebras 2011,Waterloo, Canada, 3-10 August, 2011.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 2: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/2.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
A Fréchet space X is a metrizable and complete lcs.
X =(X , (|| · ||n)n∈N
)or X = projk
(Xk , ι
k+1k
),
where
Xk =(XKer||·||k , || · ||k
), ιk+1
k : Xk+1 → Xk .
Examples:
S(Rn), H(Cn), H(Dn), C∞(K ), C∞(Ω), ω.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 3: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/3.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
A Fréchet space X is a metrizable and complete lcs.
X =(X , (|| · ||n)n∈N
)
or X = projk(Xk , ι
k+1k
),
where
Xk =(XKer||·||k , || · ||k
), ιk+1
k : Xk+1 → Xk .
Examples:
S(Rn), H(Cn), H(Dn), C∞(K ), C∞(Ω), ω.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 4: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/4.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
A Fréchet space X is a metrizable and complete lcs.
X =(X , (|| · ||n)n∈N
)or X = projk
(Xk , ι
k+1k
),
where
Xk =(XKer||·||k , || · ||k
), ιk+1
k : Xk+1 → Xk .
Examples:
S(Rn), H(Cn), H(Dn), C∞(K ), C∞(Ω), ω.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 5: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/5.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
A Fréchet space X is a metrizable and complete lcs.
X =(X , (|| · ||n)n∈N
)or X = projk
(Xk , ι
k+1k
),
where
Xk =(XKer||·||k , || · ||k
), ιk+1
k : Xk+1 → Xk .
Examples:
S(Rn), H(Cn), H(Dn), C∞(K ), C∞(Ω), ω.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 6: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/6.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
A Fréchet space X is a metrizable and complete lcs.
X =(X , (|| · ||n)n∈N
)or X = projk
(Xk , ι
k+1k
),
where
Xk =(XKer||·||k , || · ||k
), ιk+1
k : Xk+1 → Xk .
Examples:
S(Rn),
H(Cn), H(Dn), C∞(K ), C∞(Ω), ω.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 7: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/7.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
A Fréchet space X is a metrizable and complete lcs.
X =(X , (|| · ||n)n∈N
)or X = projk
(Xk , ι
k+1k
),
where
Xk =(XKer||·||k , || · ||k
), ιk+1
k : Xk+1 → Xk .
Examples:
S(Rn), H(Cn),
H(Dn), C∞(K ), C∞(Ω), ω.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 8: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/8.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
A Fréchet space X is a metrizable and complete lcs.
X =(X , (|| · ||n)n∈N
)or X = projk
(Xk , ι
k+1k
),
where
Xk =(XKer||·||k , || · ||k
), ιk+1
k : Xk+1 → Xk .
Examples:
S(Rn), H(Cn), H(Dn),
C∞(K ), C∞(Ω), ω.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 9: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/9.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
A Fréchet space X is a metrizable and complete lcs.
X =(X , (|| · ||n)n∈N
)or X = projk
(Xk , ι
k+1k
),
where
Xk =(XKer||·||k , || · ||k
), ιk+1
k : Xk+1 → Xk .
Examples:
S(Rn), H(Cn), H(Dn), C∞(K ),
C∞(Ω), ω.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 10: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/10.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
A Fréchet space X is a metrizable and complete lcs.
X =(X , (|| · ||n)n∈N
)or X = projk
(Xk , ι
k+1k
),
where
Xk =(XKer||·||k , || · ||k
), ιk+1
k : Xk+1 → Xk .
Examples:
S(Rn), H(Cn), H(Dn), C∞(K ), C∞(Ω),
ω.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 11: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/11.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
A Fréchet space X is a metrizable and complete lcs.
X =(X , (|| · ||n)n∈N
)or X = projk
(Xk , ι
k+1k
),
where
Xk =(XKer||·||k , || · ||k
), ιk+1
k : Xk+1 → Xk .
Examples:
S(Rn), H(Cn), H(Dn), C∞(K ), C∞(Ω), ω.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 12: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/12.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
1 Topological invariants.
(i) (DN) is inherited by subspaces.(ii) (Ω) passes onto quotients.(iii) Full characterization of subspaces, quotients and
complemented subspaces of S(Rn).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 13: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/13.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
1 Topological invariants.
(i) (DN) is inherited by subspaces.
(ii) (Ω) passes onto quotients.(iii) Full characterization of subspaces, quotients and
complemented subspaces of S(Rn).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 14: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/14.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
1 Topological invariants.
(i) (DN) is inherited by subspaces.(ii) (Ω) passes onto quotients.
(iii) Full characterization of subspaces, quotients andcomplemented subspaces of S(Rn).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 15: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/15.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
1 Topological invariants.
(i) (DN) is inherited by subspaces.(ii) (Ω) passes onto quotients.(iii) Full characterization of subspaces, quotients and
complemented subspaces of S(Rn).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 16: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/16.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
2 Splitting.
0 −→ Xj−→ Y
q−→ Z −→ 0, Imj = Kerq, q – open.
When q R = idZ ? ⇔ L j = idX ?
Theorem (Vogt, 1980)
Suppose we are given a short exact sequence of Fréchet-Hilbertspaces
0 −→ Xj−→ Y
q−→ Z −→ 0.
If X ∈ (Ω) and Z ∈ (DN) then the sequence splits.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 17: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/17.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
2 Splitting.
0 −→ Xj−→ Y
q−→ Z −→ 0, Imj = Kerq, q – open.
When q R = idZ ? ⇔ L j = idX ?
Theorem (Vogt, 1980)
Suppose we are given a short exact sequence of Fréchet-Hilbertspaces
0 −→ Xj−→ Y
q−→ Z −→ 0.
If X ∈ (Ω) and Z ∈ (DN) then the sequence splits.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 18: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/18.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
2 Splitting.
0 −→ Xj−→ Y
q−→ Z −→ 0, Imj = Kerq, q – open.
When q R = idZ ?
⇔ L j = idX ?
Theorem (Vogt, 1980)
Suppose we are given a short exact sequence of Fréchet-Hilbertspaces
0 −→ Xj−→ Y
q−→ Z −→ 0.
If X ∈ (Ω) and Z ∈ (DN) then the sequence splits.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 19: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/19.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
2 Splitting.
0 −→ Xj−→ Y
q−→ Z −→ 0, Imj = Kerq, q – open.
When q R = idZ ? ⇔ L j = idX ?
Theorem (Vogt, 1980)
Suppose we are given a short exact sequence of Fréchet-Hilbertspaces
0 −→ Xj−→ Y
q−→ Z −→ 0.
If X ∈ (Ω) and Z ∈ (DN) then the sequence splits.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 20: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/20.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
2 Splitting.
0 −→ Xj−→ Y
q−→ Z −→ 0, Imj = Kerq, q – open.
When q R = idZ ? ⇔ L j = idX ?
Theorem (Vogt, 1980)
Suppose we are given a short exact sequence of Fréchet-Hilbertspaces
0 −→ Xj−→ Y
q−→ Z −→ 0.
If X ∈ (Ω) and Z ∈ (DN) then the sequence splits.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 21: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/21.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
3 Pełczyński’s question.
Question (Pełczyński, 1970)
Does every complemented subspace of a nuclear Fréchet space witha basis has a basis itself?
Positive answers in all tame spaces.
Theorem (P., 2009)
If X ∈ (DN) ∩ (Ω) then X is tame.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 22: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/22.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
3 Pełczyński’s question.
Question (Pełczyński, 1970)
Does every complemented subspace of a nuclear Fréchet space witha basis has a basis itself?
Positive answers in all tame spaces.
Theorem (P., 2009)
If X ∈ (DN) ∩ (Ω) then X is tame.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 23: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/23.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
3 Pełczyński’s question.
Question (Pełczyński, 1970)
Does every complemented subspace of a nuclear Fréchet space witha basis has a basis itself?
Positive answers in all tame spaces.
Theorem (P., 2009)
If X ∈ (DN) ∩ (Ω) then X is tame.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 24: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/24.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
H(D) with norms ||f ||n := sup|f (z)| : |z |61− 1
n
, n ∈ N.
log ||f ||m6θm log ||f ||2 + (1− θm) log ||f ||n (n > m).
||f ||m6||f ||θm2 ||f ||1−θmn .
Definition
X ∈ (DN) ⇔ ∃ p ∀ q ∃ r , θ ∈ (0, 1),C > 0 :
||x ||q6C ||x ||θp||x ||1−θr ∀ x ∈ X .
‘. . . ∀ θ ∈ (0, 1) ∃ r ,C > 0 . . .’ gives X ∈ (DN).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 25: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/25.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
H(D) with norms ||f ||n := sup|f (z)| : |z |61− 1
n
, n ∈ N.
log ||f ||m6θm log ||f ||2 + (1− θm) log ||f ||n (n > m).
||f ||m6||f ||θm2 ||f ||1−θmn .
Definition
X ∈ (DN) ⇔ ∃ p ∀ q ∃ r , θ ∈ (0, 1),C > 0 :
||x ||q6C ||x ||θp||x ||1−θr ∀ x ∈ X .
‘. . . ∀ θ ∈ (0, 1) ∃ r ,C > 0 . . .’ gives X ∈ (DN).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 26: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/26.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
H(D) with norms ||f ||n := sup|f (z)| : |z |61− 1
n
, n ∈ N.
log ||f ||m6θm log ||f ||2 + (1− θm) log ||f ||n (n > m).
||f ||m6||f ||θm2 ||f ||1−θmn .
Definition
X ∈ (DN) ⇔ ∃ p ∀ q ∃ r , θ ∈ (0, 1),C > 0 :
||x ||q6C ||x ||θp||x ||1−θr ∀ x ∈ X .
‘. . . ∀ θ ∈ (0, 1) ∃ r ,C > 0 . . .’ gives X ∈ (DN).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 27: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/27.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
H(D) with norms ||f ||n := sup|f (z)| : |z |61− 1
n
, n ∈ N.
log ||f ||m6θm log ||f ||2 + (1− θm) log ||f ||n (n > m).
||f ||m6||f ||θm2 ||f ||1−θmn .
Definition
X ∈ (DN)
⇔ ∃ p ∀ q ∃ r , θ ∈ (0, 1),C > 0 :
||x ||q6C ||x ||θp||x ||1−θr ∀ x ∈ X .
‘. . . ∀ θ ∈ (0, 1) ∃ r ,C > 0 . . .’ gives X ∈ (DN).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 28: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/28.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
H(D) with norms ||f ||n := sup|f (z)| : |z |61− 1
n
, n ∈ N.
log ||f ||m6θm log ||f ||2 + (1− θm) log ||f ||n (n > m).
||f ||m6||f ||θm2 ||f ||1−θmn .
Definition
X ∈ (DN) ⇔ ∃ p ∀ q ∃ r , θ ∈ (0, 1),C > 0 :
||x ||q6C ||x ||θp||x ||1−θr ∀ x ∈ X .
‘. . . ∀ θ ∈ (0, 1) ∃ r ,C > 0 . . .’ gives X ∈ (DN).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 29: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/29.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
H(D) with norms ||f ||n := sup|f (z)| : |z |61− 1
n
, n ∈ N.
log ||f ||m6θm log ||f ||2 + (1− θm) log ||f ||n (n > m).
||f ||m6||f ||θm2 ||f ||1−θmn .
Definition
X ∈ (DN) ⇔ ∃ p ∀ q ∃ r , θ ∈ (0, 1),C > 0 :
||x ||q6C ||x ||θp||x ||1−θr ∀ x ∈ X .
‘. . . ∀ θ ∈ (0, 1) ∃ r ,C > 0 . . .’ gives X ∈ (DN).Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 30: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/30.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
Interpolation viewpoint.
X = projkXk , Xq intermediate with respect to (Xp,Xr ).(DN) type means Xq is of class CJ(θ).
Examples.
H(Dn) ∈ (DN), S(Rn),H(Cn) ∈ (DN).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 31: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/31.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
Interpolation viewpoint.
X = projkXk ,
Xq intermediate with respect to (Xp,Xr ).(DN) type means Xq is of class CJ(θ).
Examples.
H(Dn) ∈ (DN), S(Rn),H(Cn) ∈ (DN).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 32: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/32.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
Interpolation viewpoint.
X = projkXk , Xq intermediate with respect to (Xp,Xr ).
(DN) type means Xq is of class CJ(θ).
Examples.
H(Dn) ∈ (DN), S(Rn),H(Cn) ∈ (DN).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 33: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/33.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
Interpolation viewpoint.
X = projkXk , Xq intermediate with respect to (Xp,Xr ).(DN) type means Xq is of class CJ(θ).
Examples.
H(Dn) ∈ (DN), S(Rn),H(Cn) ∈ (DN).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 34: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/34.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
Interpolation viewpoint.
X = projkXk , Xq intermediate with respect to (Xp,Xr ).(DN) type means Xq is of class CJ(θ).
Examples.
H(Dn) ∈ (DN),
S(Rn),H(Cn) ∈ (DN).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 35: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/35.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
Interpolation viewpoint.
X = projkXk , Xq intermediate with respect to (Xp,Xr ).(DN) type means Xq is of class CJ(θ).
Examples.
H(Dn) ∈ (DN), S(Rn),H(Cn) ∈ (DN).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 36: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/36.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
For every φ ∈ X ′ ||φ||∗k := sup|φ(x)| : ||x ||k61 < +∞ ∀ k>k0.
We look for||φ||∗q6C
(||φ||∗p
)1−θ(||φ||∗r )θ.‘∀ p ∃ q ∀ r ∃θ ∈ (0, 1),C > 0 . . .’ ⇒ X ∈ (Ω).‘∀ p, θ ∈ (0, 1) . . .’ ⇒ X ∈ (Ω).
Examples.
S(Rn),H(Cn) ∈ (Ω), H(Dn) ∈ (Ω).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 37: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/37.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
For every φ ∈ X ′ ||φ||∗k := sup|φ(x)| : ||x ||k61 < +∞ ∀ k>k0.We look for
||φ||∗q6C(||φ||∗p
)1−θ(||φ||∗r )θ.
‘∀ p ∃ q ∀ r ∃θ ∈ (0, 1),C > 0 . . .’ ⇒ X ∈ (Ω).‘∀ p, θ ∈ (0, 1) . . .’ ⇒ X ∈ (Ω).
Examples.
S(Rn),H(Cn) ∈ (Ω), H(Dn) ∈ (Ω).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 38: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/38.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
For every φ ∈ X ′ ||φ||∗k := sup|φ(x)| : ||x ||k61 < +∞ ∀ k>k0.We look for
||φ||∗q6C(||φ||∗p
)1−θ(||φ||∗r )θ.‘∀ p ∃ q ∀ r ∃θ ∈ (0, 1),C > 0 . . .’ ⇒ X ∈ (Ω).
‘∀ p, θ ∈ (0, 1) . . .’ ⇒ X ∈ (Ω).
Examples.
S(Rn),H(Cn) ∈ (Ω), H(Dn) ∈ (Ω).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 39: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/39.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
For every φ ∈ X ′ ||φ||∗k := sup|φ(x)| : ||x ||k61 < +∞ ∀ k>k0.We look for
||φ||∗q6C(||φ||∗p
)1−θ(||φ||∗r )θ.‘∀ p ∃ q ∀ r ∃θ ∈ (0, 1),C > 0 . . .’ ⇒ X ∈ (Ω).‘∀ p, θ ∈ (0, 1) . . .’ ⇒ X ∈ (Ω).
Examples.
S(Rn),H(Cn) ∈ (Ω), H(Dn) ∈ (Ω).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 40: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/40.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
For every φ ∈ X ′ ||φ||∗k := sup|φ(x)| : ||x ||k61 < +∞ ∀ k>k0.We look for
||φ||∗q6C(||φ||∗p
)1−θ(||φ||∗r )θ.‘∀ p ∃ q ∀ r ∃θ ∈ (0, 1),C > 0 . . .’ ⇒ X ∈ (Ω).‘∀ p, θ ∈ (0, 1) . . .’ ⇒ X ∈ (Ω).
Examples.
S(Rn),H(Cn) ∈ (Ω),
H(Dn) ∈ (Ω).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 41: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/41.jpg)
Structure theoryOperator spaces
Fréchet spaceImportance of (DN) and (Ω)Definition of (DN) and (Ω)
For every φ ∈ X ′ ||φ||∗k := sup|φ(x)| : ||x ||k61 < +∞ ∀ k>k0.We look for
||φ||∗q6C(||φ||∗p
)1−θ(||φ||∗r )θ.‘∀ p ∃ q ∀ r ∃θ ∈ (0, 1),C > 0 . . .’ ⇒ X ∈ (Ω).‘∀ p, θ ∈ (0, 1) . . .’ ⇒ X ∈ (Ω).
Examples.
S(Rn),H(Cn) ∈ (Ω), H(Dn) ∈ (Ω).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 42: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/42.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Definition (Effros, Webster, 1997)
X is a Fréchet operator space if X = projk(Xk , ι
k+1k
),
Xk – operator space, ιk+1k : Xk+1 → Xk – completely bounded.
Mn(X ) = projk(Mn(Xk),
(ιk+1k
)n
).
If Q : B→ O – strict quantization then
Q(X ) := projk(Q(Xk),Q
(ιk+1k
)).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 43: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/43.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Definition (Effros, Webster, 1997)
X is a Fréchet operator space if X = projk(Xk , ι
k+1k
),
Xk – operator space, ιk+1k : Xk+1 → Xk – completely bounded.
Mn(X ) = projk(Mn(Xk),
(ιk+1k
)n
).
If Q : B→ O – strict quantization then
Q(X ) := projk(Q(Xk),Q
(ιk+1k
)).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 44: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/44.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Definition (Effros, Webster, 1997)
X is a Fréchet operator space if X = projk(Xk , ι
k+1k
),
Xk – operator space, ιk+1k : Xk+1 → Xk – completely bounded.
Mn(X ) = projk(Mn(Xk),
(ιk+1k
)n
).
If Q : B→ O – strict quantization then
Q(X ) := projk(Q(Xk),Q
(ιk+1k
)).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 45: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/45.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
s :=
x = (xj)j :+∞∑j=1
j2k |xj |2 < +∞ ∀ k ∈ N
= projk`2((jk)j
),
(s)r := projk`2((jk)j
)r ,
(s)c := projk`2((jk)j
)c ,
T := (s)r ⊗op(s)c = projk(`2((jk)j
)r ⊗op`2
((jk)j
)c
).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 46: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/46.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
s :=
x = (xj)j :+∞∑j=1
j2k |xj |2 < +∞ ∀ k ∈ N
= projk`2((jk)j
),
(s)r := projk`2((jk)j
)r ,
(s)c := projk`2((jk)j
)c ,
T := (s)r ⊗op(s)c = projk(`2((jk)j
)r ⊗op`2
((jk)j
)c
).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 47: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/47.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
s :=
x = (xj)j :+∞∑j=1
j2k |xj |2 < +∞ ∀ k ∈ N
= projk`2((jk)j
),
(s)r := projk`2((jk)j
)r ,
(s)c := projk`2((jk)j
)c ,
T := (s)r ⊗op(s)c = projk(`2((jk)j
)r ⊗op`2
((jk)j
)c
).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 48: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/48.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
DefinitionX ∈ (oDN) if (quantifiers)
∀ n ∈ N ∀ (xij) ∈ Mn(X ) : ||(xij)||q6C ||(xij)||1−θp ||(xij)||θr .
In particular, Mn(X ) ∈ (DN) ∀ n ∈ N.If X ∈ (DN) then by
||(xij)||6( n∑
i ,j=1
||xij ||2) 1
26n||(xij)||
we get Mn(X ) ∈ (DN) ∀ n ∈ N (caution: C grows with n).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 49: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/49.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
DefinitionX ∈ (oDN) if (quantifiers)
∀ n ∈ N ∀ (xij) ∈ Mn(X ) : ||(xij)||q6C ||(xij)||1−θp ||(xij)||θr .
In particular, Mn(X ) ∈ (DN) ∀ n ∈ N.
If X ∈ (DN) then by
||(xij)||6( n∑
i ,j=1
||xij ||2) 1
26n||(xij)||
we get Mn(X ) ∈ (DN) ∀ n ∈ N (caution: C grows with n).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 50: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/50.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
DefinitionX ∈ (oDN) if (quantifiers)
∀ n ∈ N ∀ (xij) ∈ Mn(X ) : ||(xij)||q6C ||(xij)||1−θp ||(xij)||θr .
In particular, Mn(X ) ∈ (DN) ∀ n ∈ N.If X ∈ (DN) then by
||(xij)||6( n∑
i ,j=1
||xij ||2) 1
26n||(xij)||
we get Mn(X ) ∈ (DN) ∀ n ∈ N (caution: C grows with n).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 51: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/51.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
DefinitionX ∈ (oΩ) if (quantifiers)
∀ n ∈ N ∀ (φij) ∈ Mn(X ′) : ||(φij)||∗q6C(||(φij)||∗p
)1−θ(||(φij)||∗r)θ,
where||(φij)||∗k = ||(φij)||CB(Xk ,Mn).
Proposition (P., 2011)
(s)r ⊗op(s)c satisfies both (oDN) and (oΩ).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 52: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/52.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
DefinitionX ∈ (oΩ) if (quantifiers)
∀ n ∈ N ∀ (φij) ∈ Mn(X ′) : ||(φij)||∗q6C(||(φij)||∗p
)1−θ(||(φij)||∗r)θ,
where||(φij)||∗k = ||(φij)||CB(Xk ,Mn).
Proposition (P., 2011)
(s)r ⊗op(s)c satisfies both (oDN) and (oΩ).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 53: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/53.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
If X = projkXk then
MIN(X ) := projkMIN(Xk), MAX (X ) := projkMAX (Xk).
If H = projkHk is a Fréchet-Hilbert space then
Hr := projk(Hk)r , Hc := projk(Hk)c , OH := projkOHk .
ProblemSuppose X ∈ (DN) or X ∈ (Ω). Which of the above quantizationscarry over these conditions onto the o.s. structure?
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 54: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/54.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
If X = projkXk then
MIN(X ) := projkMIN(Xk), MAX (X ) := projkMAX (Xk).
If H = projkHk is a Fréchet-Hilbert space then
Hr := projk(Hk)r , Hc := projk(Hk)c , OH := projkOHk .
ProblemSuppose X ∈ (DN) or X ∈ (Ω). Which of the above quantizationscarry over these conditions onto the o.s. structure?
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 55: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/55.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
If X = projkXk then
MIN(X ) := projkMIN(Xk), MAX (X ) := projkMAX (Xk).
If H = projkHk is a Fréchet-Hilbert space then
Hr := projk(Hk)r , Hc := projk(Hk)c , OH := projkOHk .
ProblemSuppose X ∈ (DN) or X ∈ (Ω). Which of the above quantizationscarry over these conditions onto the o.s. structure?
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 56: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/56.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Proposition (Vogt, 1977)
X ∈ (DN) ⇔ ∃ p ∀ q ∃ r ,C > 0 :
Uq ⊂ sUp +Cs
Ur ∀ s > 0,
whereUk := φ ∈ X ′ : |φ(x)|61 ∀ x ∈ Uk.
Proposition (P., 2011)
X ∈ (DN) ⇔ MIN(X ) ∈ (oDN).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 57: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/57.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Proposition (Vogt, 1977)
X ∈ (DN) ⇔ ∃ p ∀ q ∃ r ,C > 0 :
Uq ⊂ sUp +Cs
Ur ∀ s > 0,
whereUk := φ ∈ X ′ : |φ(x)|61 ∀ x ∈ Uk.
Proposition (P., 2011)
X ∈ (DN) ⇔ MIN(X ) ∈ (oDN).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 58: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/58.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Proposition (Vogt, 1977)
X ∈ (DN) ⇔ ∃ p ∀ q ∃ r ,C > 0 :
Uq ⊂ sUp +Cs
Ur ∀ s > 0,
whereUk := φ ∈ X ′ : |φ(x)|61 ∀ x ∈ Uk.
Proposition (P., 2011)
X ∈ (DN) ⇔ MIN(X ) ∈ (oDN).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 59: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/59.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Proof.Necessity: obvious.Sufficiency. If (xij) ∈ Mn(MIN(X )) then
||(xij)||k = sup∣∣∣∣(φ(xij)
)ni ,j=1
∣∣∣∣Mn
: φ ∈ Uk.
Consequently,
||(xij)||q6 sup||(sξ + Cs−1η)(xij)||Mn : ξ ∈ Up , η ∈ Ur
6
6s||(xij)||p + Cs−1||(xij)||r .
Finally,||(xij)||2q64C ||(xij)||p||(xij)||r .
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 60: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/60.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Proof.Necessity: obvious.Sufficiency. If (xij) ∈ Mn(MIN(X )) then
||(xij)||k = sup∣∣∣∣(φ(xij)
)ni ,j=1
∣∣∣∣Mn
: φ ∈ Uk.
Consequently,
||(xij)||q6 sup||(sξ + Cs−1η)(xij)||Mn : ξ ∈ Up , η ∈ Ur
6
6s||(xij)||p + Cs−1||(xij)||r .
Finally,||(xij)||2q64C ||(xij)||p||(xij)||r .
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 61: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/61.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Proof.Necessity: obvious.Sufficiency. If (xij) ∈ Mn(MIN(X )) then
||(xij)||k = sup∣∣∣∣(φ(xij)
)ni ,j=1
∣∣∣∣Mn
: φ ∈ Uk.
Consequently,
||(xij)||q6 sup||(sξ + Cs−1η)(xij)||Mn : ξ ∈ Up , η ∈ Ur
6
6s||(xij)||p + Cs−1||(xij)||r .
Finally,||(xij)||2q64C ||(xij)||p||(xij)||r .
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 62: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/62.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Proof.Necessity: obvious.Sufficiency. If (xij) ∈ Mn(MIN(X )) then
||(xij)||k = sup∣∣∣∣(φ(xij)
)ni ,j=1
∣∣∣∣Mn
: φ ∈ Uk.
Consequently,
||(xij)||q6 sup||(sξ + Cs−1η)(xij)||Mn : ξ ∈ Up , η ∈ Ur
6
6s||(xij)||p + Cs−1||(xij)||r .
Finally,||(xij)||2q64C ||(xij)||p||(xij)||r .
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 63: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/63.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Corollary
X ∈ (Ω) ⇔ MAX (X ) ∈ (oΩ).
Proof.Necessity: obvious.Sufficiency. If (φij) ∈ Mn(MAX (X ′)) then
||(φij)||∗k = sup∣∣∣∣(x ′′(φij)
)ni ,j=1
∣∣∣∣Mn
: x ′′ ∈ Uk
=
= sup∣∣∣∣(x ′′(φij)
)∣∣∣∣Mn
: x ′′ ∈ Ukσ(X ′′,X ′)
=
sup∣∣∣∣(φij(x)
)∣∣∣∣Mn
: x ∈ Uk
.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 64: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/64.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Corollary
X ∈ (Ω) ⇔ MAX (X ) ∈ (oΩ).
Proof.Necessity: obvious.Sufficiency. If (φij) ∈ Mn(MAX (X ′)) then
||(φij)||∗k = sup∣∣∣∣(x ′′(φij)
)ni ,j=1
∣∣∣∣Mn
: x ′′ ∈ Uk
=
= sup∣∣∣∣(x ′′(φij)
)∣∣∣∣Mn
: x ′′ ∈ Ukσ(X ′′,X ′)
=
sup∣∣∣∣(φij(x)
)∣∣∣∣Mn
: x ∈ Uk
.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 65: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/65.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Corollary
X ∈ (Ω) ⇔ MAX (X ) ∈ (oΩ).
Proof.Necessity: obvious.Sufficiency. If (φij) ∈ Mn(MAX (X ′)) then
||(φij)||∗k = sup∣∣∣∣(x ′′(φij)
)ni ,j=1
∣∣∣∣Mn
: x ′′ ∈ Uk
=
= sup∣∣∣∣(x ′′(φij)
)∣∣∣∣Mn
: x ′′ ∈ Ukσ(X ′′,X ′)
=
sup∣∣∣∣(φij(x)
)∣∣∣∣Mn
: x ∈ Uk
.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 66: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/66.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Corollary
X ∈ (Ω) ⇔ MAX (X ) ∈ (oΩ).
Proof.Necessity: obvious.Sufficiency. If (φij) ∈ Mn(MAX (X ′)) then
||(φij)||∗k = sup∣∣∣∣(x ′′(φij)
)ni ,j=1
∣∣∣∣Mn
: x ′′ ∈ Uk
=
= sup∣∣∣∣(x ′′(φij)
)∣∣∣∣Mn
: x ′′ ∈ Ukσ(X ′′,X ′)
=
sup∣∣∣∣(φij(x)
)∣∣∣∣Mn
: x ∈ Uk
.
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 67: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/67.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
If (xij) ∈ Mn(MAX (X )) then
||(xij)||k = sup∣∣∣∣(fuv (xij)
)∣∣∣∣Mnm
,
where the ‘sup’ runs over all (fuv ) ∈ L(X ,Mm) with||(fuv )||L(Xk ,Mm)61 and all m ∈ N.
If X is Fréchet and dimE < +∞ then L(X ,E ) = (X ⊗π E ′)′.(Γ(Uk ⊗ BE ′)
)k∈N
– 0-nbhd basis in X ⊗π E ′,(Γ(Uk ⊗ BE ′)
)= BL(Xk ,E).
If X ⊗π E ′ ∈ (DN) then BL(Xq ,E) ⊂ sBL(Xp ,E) + Cs BL(Xr ,E).
If E = Mm then ||(xij)||q6 sup∣∣∣∣((sguv + Cs−1huv )(xij)
)∣∣∣∣Mnm
:
(guv ) ∈ BL(Xp ,Mm), (huv ) ∈ BL(Xr ,Mm)
6s||(xij)||p + Cs−1||(xij)||r .
Finally,||(xij)||2q64C ||(xij)||p||(xij)||r .
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 68: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/68.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
If (xij) ∈ Mn(MAX (X )) then
||(xij)||k = sup∣∣∣∣(fuv (xij)
)∣∣∣∣Mnm
,
where the ‘sup’ runs over all (fuv ) ∈ L(X ,Mm) with||(fuv )||L(Xk ,Mm)61 and all m ∈ N.If X is Fréchet and dimE < +∞ then L(X ,E ) = (X ⊗π E ′)′.
(Γ(Uk ⊗ BE ′)
)k∈N
– 0-nbhd basis in X ⊗π E ′,(Γ(Uk ⊗ BE ′)
)= BL(Xk ,E).
If X ⊗π E ′ ∈ (DN) then BL(Xq ,E) ⊂ sBL(Xp ,E) + Cs BL(Xr ,E).
If E = Mm then ||(xij)||q6 sup∣∣∣∣((sguv + Cs−1huv )(xij)
)∣∣∣∣Mnm
:
(guv ) ∈ BL(Xp ,Mm), (huv ) ∈ BL(Xr ,Mm)
6s||(xij)||p + Cs−1||(xij)||r .
Finally,||(xij)||2q64C ||(xij)||p||(xij)||r .
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 69: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/69.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
If (xij) ∈ Mn(MAX (X )) then
||(xij)||k = sup∣∣∣∣(fuv (xij)
)∣∣∣∣Mnm
,
where the ‘sup’ runs over all (fuv ) ∈ L(X ,Mm) with||(fuv )||L(Xk ,Mm)61 and all m ∈ N.If X is Fréchet and dimE < +∞ then L(X ,E ) = (X ⊗π E ′)′.(
Γ(Uk ⊗ BE ′))
k∈N– 0-nbhd basis in X ⊗π E ′,
(Γ(Uk ⊗ BE ′)
)= BL(Xk ,E).
If X ⊗π E ′ ∈ (DN) then BL(Xq ,E) ⊂ sBL(Xp ,E) + Cs BL(Xr ,E).
If E = Mm then ||(xij)||q6 sup∣∣∣∣((sguv + Cs−1huv )(xij)
)∣∣∣∣Mnm
:
(guv ) ∈ BL(Xp ,Mm), (huv ) ∈ BL(Xr ,Mm)
6s||(xij)||p + Cs−1||(xij)||r .
Finally,||(xij)||2q64C ||(xij)||p||(xij)||r .
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 70: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/70.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
If (xij) ∈ Mn(MAX (X )) then
||(xij)||k = sup∣∣∣∣(fuv (xij)
)∣∣∣∣Mnm
,
where the ‘sup’ runs over all (fuv ) ∈ L(X ,Mm) with||(fuv )||L(Xk ,Mm)61 and all m ∈ N.If X is Fréchet and dimE < +∞ then L(X ,E ) = (X ⊗π E ′)′.(
Γ(Uk ⊗ BE ′))
k∈N– 0-nbhd basis in X ⊗π E ′,(
Γ(Uk ⊗ BE ′))
= BL(Xk ,E).
If X ⊗π E ′ ∈ (DN) then BL(Xq ,E) ⊂ sBL(Xp ,E) + Cs BL(Xr ,E).
If E = Mm then ||(xij)||q6 sup∣∣∣∣((sguv + Cs−1huv )(xij)
)∣∣∣∣Mnm
:
(guv ) ∈ BL(Xp ,Mm), (huv ) ∈ BL(Xr ,Mm)
6s||(xij)||p + Cs−1||(xij)||r .
Finally,||(xij)||2q64C ||(xij)||p||(xij)||r .
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 71: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/71.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
If (xij) ∈ Mn(MAX (X )) then
||(xij)||k = sup∣∣∣∣(fuv (xij)
)∣∣∣∣Mnm
,
where the ‘sup’ runs over all (fuv ) ∈ L(X ,Mm) with||(fuv )||L(Xk ,Mm)61 and all m ∈ N.If X is Fréchet and dimE < +∞ then L(X ,E ) = (X ⊗π E ′)′.(
Γ(Uk ⊗ BE ′))
k∈N– 0-nbhd basis in X ⊗π E ′,(
Γ(Uk ⊗ BE ′))
= BL(Xk ,E).
If X ⊗π E ′ ∈ (DN) then BL(Xq ,E) ⊂ sBL(Xp ,E) + Cs BL(Xr ,E).
If E = Mm then ||(xij)||q6 sup∣∣∣∣((sguv + Cs−1huv )(xij)
)∣∣∣∣Mnm
:
(guv ) ∈ BL(Xp ,Mm), (huv ) ∈ BL(Xr ,Mm)
6s||(xij)||p + Cs−1||(xij)||r .
Finally,||(xij)||2q64C ||(xij)||p||(xij)||r .
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 72: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/72.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
If (xij) ∈ Mn(MAX (X )) then
||(xij)||k = sup∣∣∣∣(fuv (xij)
)∣∣∣∣Mnm
,
where the ‘sup’ runs over all (fuv ) ∈ L(X ,Mm) with||(fuv )||L(Xk ,Mm)61 and all m ∈ N.If X is Fréchet and dimE < +∞ then L(X ,E ) = (X ⊗π E ′)′.(
Γ(Uk ⊗ BE ′))
k∈N– 0-nbhd basis in X ⊗π E ′,(
Γ(Uk ⊗ BE ′))
= BL(Xk ,E).
If X ⊗π E ′ ∈ (DN) then BL(Xq ,E) ⊂ sBL(Xp ,E) + Cs BL(Xr ,E).
If E = Mm
then ||(xij)||q6 sup∣∣∣∣((sguv + Cs−1huv )(xij)
)∣∣∣∣Mnm
:
(guv ) ∈ BL(Xp ,Mm), (huv ) ∈ BL(Xr ,Mm)
6s||(xij)||p + Cs−1||(xij)||r .
Finally,||(xij)||2q64C ||(xij)||p||(xij)||r .
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 73: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/73.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
If (xij) ∈ Mn(MAX (X )) then
||(xij)||k = sup∣∣∣∣(fuv (xij)
)∣∣∣∣Mnm
,
where the ‘sup’ runs over all (fuv ) ∈ L(X ,Mm) with||(fuv )||L(Xk ,Mm)61 and all m ∈ N.If X is Fréchet and dimE < +∞ then L(X ,E ) = (X ⊗π E ′)′.(
Γ(Uk ⊗ BE ′))
k∈N– 0-nbhd basis in X ⊗π E ′,(
Γ(Uk ⊗ BE ′))
= BL(Xk ,E).
If X ⊗π E ′ ∈ (DN) then BL(Xq ,E) ⊂ sBL(Xp ,E) + Cs BL(Xr ,E).
If E = Mm then ||(xij)||q6 sup∣∣∣∣((sguv + Cs−1huv )(xij)
)∣∣∣∣Mnm
:
(guv ) ∈ BL(Xp ,Mm), (huv ) ∈ BL(Xr ,Mm)
6s||(xij)||p + Cs−1||(xij)||r .
Finally,||(xij)||2q64C ||(xij)||p||(xij)||r .
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 74: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/74.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
If (xij) ∈ Mn(MAX (X )) then
||(xij)||k = sup∣∣∣∣(fuv (xij)
)∣∣∣∣Mnm
,
where the ‘sup’ runs over all (fuv ) ∈ L(X ,Mm) with||(fuv )||L(Xk ,Mm)61 and all m ∈ N.If X is Fréchet and dimE < +∞ then L(X ,E ) = (X ⊗π E ′)′.(
Γ(Uk ⊗ BE ′))
k∈N– 0-nbhd basis in X ⊗π E ′,(
Γ(Uk ⊗ BE ′))
= BL(Xk ,E).
If X ⊗π E ′ ∈ (DN) then BL(Xq ,E) ⊂ sBL(Xp ,E) + Cs BL(Xr ,E).
If E = Mm then ||(xij)||q6 sup∣∣∣∣((sguv + Cs−1huv )(xij)
)∣∣∣∣Mnm
:
(guv ) ∈ BL(Xp ,Mm), (huv ) ∈ BL(Xr ,Mm)
6s||(xij)||p + Cs−1||(xij)||r .
Finally,||(xij)||2q64C ||(xij)||p||(xij)||r .
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 75: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/75.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
If (xij) ∈ Mn(MAX (X )) then
||(xij)||k = sup∣∣∣∣(fuv (xij)
)∣∣∣∣Mnm
,
where the ‘sup’ runs over all (fuv ) ∈ L(X ,Mm) with||(fuv )||L(Xk ,Mm)61 and all m ∈ N.If X is Fréchet and dimE < +∞ then L(X ,E ) = (X ⊗π E ′)′.(
Γ(Uk ⊗ BE ′))
k∈N– 0-nbhd basis in X ⊗π E ′,(
Γ(Uk ⊗ BE ′))
= BL(Xk ,E).
If X ⊗π E ′ ∈ (DN) then BL(Xq ,E) ⊂ sBL(Xp ,E) + Cs BL(Xr ,E).
If E = Mm then ||(xij)||q6 sup∣∣∣∣((sguv + Cs−1huv )(xij)
)∣∣∣∣Mnm
:
(guv ) ∈ BL(Xp ,Mm), (huv ) ∈ BL(Xr ,Mm)
6s||(xij)||p + Cs−1||(xij)||r .
Finally,||(xij)||2q64C ||(xij)||p||(xij)||r .
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
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Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Proposition (P., 2011)
X ∈ (DN) ⇔ MAX (X ) ∈ (oDN).
Formally missing:X ∈ (DN) and dimE < +∞ ⇒ X ⊗π E ∈ (DN).
Corollary
X ∈ (Ω) ⇔ MIN(X ) ∈ (oΩ).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 77: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/77.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Proposition (P., 2011)
X ∈ (DN) ⇔ MAX (X ) ∈ (oDN).
Formally missing:X ∈ (DN) and dimE < +∞ ⇒ X ⊗π E ∈ (DN).
Corollary
X ∈ (Ω) ⇔ MIN(X ) ∈ (oΩ).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 78: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/78.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Proposition (P., 2011)
X ∈ (DN) ⇔ MAX (X ) ∈ (oDN).
Formally missing:X ∈ (DN) and dimE < +∞ ⇒ X ⊗π E ∈ (DN).
Corollary
X ∈ (Ω) ⇔ MIN(X ) ∈ (oΩ).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 79: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/79.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Proposition (P., 2011)
Suppose H is a Fréchet-Hilbert space.1 H ∈ (DN) ⇔ Hr ∈ (oDN) ⇔ Hc ∈ (oDN).2 H ∈ (Ω) ⇔ Hr ∈ (oΩ) ⇔ Hc ∈ (oΩ).
Conjecture1 H ∈ (DN) ⇔ OH ∈ (oDN).2 H ∈ (Ω) ⇔ OH ∈ (oΩ).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces
![Page 80: DN () type conditions for Fréchet operator spacesbanalg20/Talks/piszczek.pdf · Structuretheory Operatorspaces (DN) () type conditions for Fréchet operator spaces KrzysztofPiszczek](https://reader033.vdocuments.pub/reader033/viewer/2022060816/6095753c38eb0774204daa94/html5/thumbnails/80.jpg)
Structure theoryOperator spaces
Fréchet operator spaceExample – space of physical statesOperator analogues of (DN) and (Ω)Quantizations
Proposition (P., 2011)
Suppose H is a Fréchet-Hilbert space.1 H ∈ (DN) ⇔ Hr ∈ (oDN) ⇔ Hc ∈ (oDN).2 H ∈ (Ω) ⇔ Hr ∈ (oΩ) ⇔ Hc ∈ (oΩ).
Conjecture1 H ∈ (DN) ⇔ OH ∈ (oDN).2 H ∈ (Ω) ⇔ OH ∈ (oΩ).
Krzysztof Piszczek (DN)− (Ω) type conditions for Fréchet operator spaces