List questions from c-star-algebras

Published on 29 Mar 2026 - 22:36

123

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Being Close to a Unitary in a C$^{}$-algebra Implies Being Close to a Unitary in a Sub-C$^{}$-Algebra

Published on 24 Feb 2026 - 2:13

172

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Evaluating Gibbs state in the second quantized formalism

Published on 26 Mar 2026 - 9:37

70

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Are matrices of continuous functions on the circle non-simple?

Published on 13 May 2017 - 21:08

54

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If $e_j$ is an approximate unit and $\theta \in A^*$ is positive then $\|\theta e_j - \theta \| \rightarrow 0$

Published on 16 May 2017 - 14:11

532

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Equivalent Condition of Unitary Equivalence of Projections in a Hilbert Space

Published on 17 May 2017 - 16:28

518

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States on a matrix C* algebra

Published on 20 May 2017 - 20:12

312

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$C^{n}[0, 1]$ is not a C*-algebra

Published on 30 Mar 2026 - 17:15

139

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Cuntz algebra and Schur-Weyl duality

Published on 22 May 2017 - 8:40

85

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If $X \subset Y$ is a subspace and $W$ is arbitrary, then $\frac{Y \otimes W}{X \otimes W} \simeq \frac{Y}{X} \otimes W$

Published on 23 May 2017 - 11:35

113

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Approximate unit on $C_0(X)$ converges uniformly on compact sets

Published on 23 Feb 2026 - 4:53

88

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Non-commuting projections in non-separable Hilbert space

Published on 27 May 2017 - 13:11

63

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Are Projections $p$ and $q$ in a C$^{*}$-algebra $A$ equal if $p\leq q\leq tp$ for some $t\in[0,\infty)$?

Published on 06 Apr 2026 - 3:41

499

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C*-Algebras: Continuity of the absolute value?

Published on 05 Apr 2026 - 22:18

186

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Question Regarding the Standard Picture of $K_{0}(A)$ for a C$^{*}$-Algebra $A$

Published on 28 Mar 2026 - 22:28

List Question

II$_1$ factors are simple

Being Close to a Unitary in a C$^{}$-algebra Implies Being Close to a Unitary in a Sub-C$^{}$-Algebra

Evaluating Gibbs state in the second quantized formalism

Are matrices of continuous functions on the circle non-simple?

If $e_j$ is an approximate unit and $\theta \in A^*$ is positive then $\|\theta e_j - \theta \| \rightarrow 0$

Equivalent Condition of Unitary Equivalence of Projections in a Hilbert Space

States on a matrix C* algebra

$C^{n}[0, 1]$ is not a C*-algebra

Cuntz algebra and Schur-Weyl duality

If $X \subset Y$ is a subspace and $W$ is arbitrary, then $\frac{Y \otimes W}{X \otimes W} \simeq \frac{Y}{X} \otimes W$

Approximate unit on $C_0(X)$ converges uniformly on compact sets

Non-commuting projections in non-separable Hilbert space

Are Projections $p$ and $q$ in a C$^{*}$-algebra $A$ equal if $p\leq q\leq tp$ for some $t\in[0,\infty)$?

C*-Algebras: Continuity of the absolute value?

Question Regarding the Standard Picture of $K_{0}(A)$ for a C$^{*}$-Algebra $A$

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