List questions from operator-algebras

Published on 06 Sep 2023 - 13:56

48

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Suficient condition for an unital $C^*$-algebra homomorphism to be surjective on postive elements.

Published on 01 Apr 2026 - 19:25

61

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Any reference for the mathematics of Quantum Mechanics with infinite degrees of freedom?

Published on 25 Mar 2026 - 20:36

84

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Representation of the Time Evolution Operator in QM

Published on 30 Mar 2026 - 14:39

35

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Positivity of an $n \times n$ matrix in $M_n(B(\mathcal H))$

Published on 29 Mar 2026 - 18:34

52

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Normal Hahn-Banach extension of a von Neumann algebra

Published on 28 Mar 2026 - 13:41

56

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Solving "time evolution" partial differential eq using Lagrange shift operator

Published on 29 Mar 2026 - 10:18

50

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A question about a projection in a W$^*$-algebra

Published on 28 Mar 2026 - 11:53

35

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Given an $*$-algebra, when I can construct a codimension 1 subalgbera?

Published on 18 Sep 2023 - 13:38

22

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Definition of transpose map in Murphy's C* algebras

Published on 20 Sep 2023 - 0:33

62

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Does the ultra-weak topology coincide with the weak topology on the unit ball?

Published on 20 Sep 2023 - 11:18

54

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Is $a \mapsto(\pi(a) h \mid h)$ for $h \in \mathcal{H}$ with $\|h\|=1$ a state for non-unital C*algebra?

Published on 24 Sep 2023 - 14:22

36

Views

Do limit and commutator of elements in a quasi-local algebra commute?

Published on 25 Mar 2026 - 19:05

49

Views

completely positivity on operator system category implies completely contractivity on operator space category?

Published on 31 Mar 2026 - 17:26

37

Views

max-min nuclear operator system

Published on 01 Apr 2026 - 7:45

List Question

Murphy theorem A.1 about seminorms and continuity

Suficient condition for an unital $C^*$-algebra homomorphism to be surjective on postive elements.

Any reference for the mathematics of Quantum Mechanics with infinite degrees of freedom?

Representation of the Time Evolution Operator in QM

Positivity of an $n \times n$ matrix in $M_n(B(\mathcal H))$

Normal Hahn-Banach extension of a von Neumann algebra

Solving "time evolution" partial differential eq using Lagrange shift operator

A question about a projection in a W$^*$-algebra

Given an $*$-algebra, when I can construct a codimension 1 subalgbera?

Definition of transpose map in Murphy's C* algebras

Does the ultra-weak topology coincide with the weak topology on the unit ball?

Is $a \mapsto(\pi(a) h \mid h)$ for $h \in \mathcal{H}$ with $\|h\|=1$ a state for non-unital C*algebra?

Do limit and commutator of elements in a quasi-local algebra commute?

completely positivity on operator system category implies completely contractivity on operator space category?

max-min nuclear operator system

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