List questions from c-star-algebras

Published on 27 Mar 2026 - 16:03

176

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Lipschitz Seminorms Associated to a Metric and Seminorms from Dirac Operators

Published on 25 Mar 2026 - 17:38

220

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Adjointable operators of a certain Hilbert module

Published on 30 Mar 2026 - 22:17

138

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Exactness of (full) group $C^*$-algebra

Published on 31 Mar 2026 - 12:21

126

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Does localisation of a faithful retraction induce an isomorphism between adjointables of Hilbert modules?

Published on 30 Mar 2026 - 22:47

67

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Proving $K_1(\mathcal{T})=0$ (is trivial)

Published on 25 Mar 2026 - 6:02

89

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The generator of $K_0(C(\partial(]0,1[^2)))$ and $K_1(C(\partial(]0,1[^2)))$

Published on 25 Mar 2026 - 6:05

82

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Given notion of “commutativity” in $C^{\ast}-$ algebra same as usual notion of commutativity?

Published on 31 Mar 2026 - 12:16

66

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Is it true that $I \otimes J$ is ideal of $A \otimes B$?

Published on 15 Jun 2020 - 5:48

91

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Universal completions of *algebras

Published on 01 Apr 2026 - 4:31

39

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Relates between states corresponding measure on $C(X)$

Published on 25 Mar 2026 - 13:52

109

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Separability of group $C^*$-algebras

Published on 31 Mar 2026 - 12:22

77

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Fixed points Cross products

Published on 17 Jun 2020 - 13:07

95

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Center of Minimal Tensor Product of $C^{\ast}$-Algebras

Published on 31 Mar 2026 - 14:28

202

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An ultraweakly continuous functional on the unit ball is ultraweakly continuous everywhere.

Published on 27 Mar 2026 - 18:34

List Question

Prove that $C[0, 1]$ is NOT Approximately Finite

Lipschitz Seminorms Associated to a Metric and Seminorms from Dirac Operators

Adjointable operators of a certain Hilbert module

Exactness of (full) group $C^*$-algebra

Does localisation of a faithful retraction induce an isomorphism between adjointables of Hilbert modules?

Proving $K_1(\mathcal{T})=0$ (is trivial)

The generator of $K_0(C(\partial(]0,1[^2)))$ and $K_1(C(\partial(]0,1[^2)))$

Given notion of “commutativity” in $C^{\ast}-$ algebra same as usual notion of commutativity?

Is it true that $I \otimes J$ is ideal of $A \otimes B$?

Universal completions of *algebras

Relates between states corresponding measure on $C(X)$

Separability of group $C^*$-algebras

Fixed points Cross products

Center of Minimal Tensor Product of $C^{\ast}$-Algebras

An ultraweakly continuous functional on the unit ball is ultraweakly continuous everywhere.

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