List questions from operator-algebras

Published on 31 Mar 2026 - 21:55

484

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Multiplication not continuous in $B(H)$ in the strong operator topology

Published on 19 Feb 2013 - 5:38

151

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Set of states not compact

Published on 07 Apr 2026 - 13:14

906

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State space is weak* compact

Published on 07 Apr 2026 - 13:13

388

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Counterexample for a polar decomposition in von Neumann and $C^\ast$ algebras

Published on 30 Mar 2026 - 9:38

1.8k

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Polar decomposition of invertible elements in a unital C$ ^{*} $-algebra.

Published on 31 Mar 2026 - 20:07

509

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The span of the orthorgonal projections is norm dense in $B(H)$

Published on 30 Mar 2026 - 9:38

69

Views

problem related to tensor product on Hilbert spaces

Published on 05 Mar 2013 - 18:11

114

Views

Operator inequalities: $0 \leq A \leq B \Rightarrow Tr(A^p) \leq Tr(B^p)$?

Published on 30 Mar 2026 - 8:58

278

Views

Operator monotone functions

Published on 07 Apr 2026 - 18:51

293

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Unitary operators - convergence problem

Published on 27 Mar 2026 - 21:23

246

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Linear functional on Banach algebra

Published on 11 Mar 2013 - 16:59

532

Views

Multiplicative linear functional on algebra of limit of polynomials

Published on 11 Mar 2013 - 17:23

68

Views

Help proving operator inequality

Published on 02 Apr 2026 - 9:44

234

Views

Recovering a group from its C*-algebras and group algebra

Published on 12 Mar 2013 - 14:12

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Biduals generated by projections

Multiplication not continuous in $B(H)$ in the strong operator topology

Set of states not compact

State space is weak* compact

Counterexample for a polar decomposition in von Neumann and $C^\ast$ algebras

Polar decomposition of invertible elements in a unital C$ ^{*} $-algebra.

The span of the orthorgonal projections is norm dense in $B(H)$

problem related to tensor product on Hilbert spaces

Operator inequalities: $0 \leq A \leq B \Rightarrow Tr(A^p) \leq Tr(B^p)$?

Operator monotone functions

Unitary operators - convergence problem

Linear functional on Banach algebra

Multiplicative linear functional on algebra of limit of polynomials

Help proving operator inequality

Recovering a group from its C*-algebras and group algebra

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