List questions from von-neumann-algebras

Published on 04 Oct 2023 - 19:22

60

Views

Non-isomorphic AF-algebras

Published on 25 Mar 2026 - 9:34

87

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The form of the intersection of two von neumann algebras

Published on 25 Mar 2026 - 19:10

57

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Predual of von Neumann algebra M is closed in the dual $M*$

Published on 26 Mar 2026 - 12:37

70

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Why is ultraweak topology on B(H) the same as weak* topology?

Published on 17 Oct 2023 - 22:25

55

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On norm bounded sets of $B(H)$, the weak (operator) and ultraweak topologies coincide.

Published on 18 Oct 2023 - 15:25

59

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Existence of matrix units of infinite cardinality in a properly infinite von Neumann algebra

Published on 19 Oct 2023 - 6:54

84

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Tensor product of factors is a factor?

Published on 26 Oct 2023 - 21:29

25

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Are operators that commute with decomposable operators also decomposable?

Published on 01 Nov 2023 - 0:56

49

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Multiplier algebra of a C*-algebra inside a von Neumann algebra.

Published on 01 Nov 2023 - 20:11

164

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Supremum of a bounded set of real-valued functions in $L^\infty(X)$

Published on 06 Nov 2023 - 18:11

67

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Projections in atomless von Neumann algebras

Published on 10 Nov 2023 - 5:31

38

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The map $\xi \mapsto \omega_\xi$ from a Hilbert space to the pre-dual of a von Neumann algebra is continuous

Published on 10 Nov 2023 - 8:48

471

Views

Example of operator that commutes with a given multiplication that is not itself a multiplication.

Published on 28 Mar 2026 - 10:28

31

Views

$\int_0^\lambda z de_z+\lambda p$ is a positive element of a von Neumann algebra $M$ whenever $\lambda >0$

Published on 14 Nov 2023 - 10:13

List Question

Projections perpendicular to a subsequence of a decreasing sequence of projections

Non-isomorphic AF-algebras

The form of the intersection of two von neumann algebras

Predual of von Neumann algebra M is closed in the dual $M*$

Why is ultraweak topology on B(H) the same as weak* topology?

On norm bounded sets of $B(H)$, the weak (operator) and ultraweak topologies coincide.

Existence of matrix units of infinite cardinality in a properly infinite von Neumann algebra

Tensor product of factors is a factor?

Are operators that commute with decomposable operators also decomposable?

Multiplier algebra of a C*-algebra inside a von Neumann algebra.

Supremum of a bounded set of real-valued functions in $L^\infty(X)$

Projections in atomless von Neumann algebras

The map $\xi \mapsto \omega_\xi$ from a Hilbert space to the pre-dual of a von Neumann algebra is continuous

Example of operator that commutes with a given multiplication that is not itself a multiplication.

$\int_0^\lambda z de_z+\lambda p$ is a positive element of a von Neumann algebra $M$ whenever $\lambda >0$

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