List questions from c-star-algebras

Published on 09 Apr 2026 - 17:59

40

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A sufficient condition to determine two weights are equal

Published on 30 Mar 2026 - 16:44

59

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$\|A\|,\|B\|\leq 1$. How do I prove $\left(\begin{array}{}1&A&AB\\A^&1&B\\B^A^&B^&1\end{array}\right)$ is positive.

Published on 08 Dec 2020 - 8:42

25

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one parameter-family of unitaries lie in the commutant of a von Neuamann algebra

Published on 30 Mar 2026 - 16:46

197

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Extension of trace preserving $*$-homomorphisms on dense subalgebras of von Neumann algebras.

Published on 30 Mar 2026 - 16:46

130

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subprojections in $C^*$-algebras

Published on 30 Mar 2026 - 16:48

71

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Existence minimal projections compact operators

Published on 30 Mar 2026 - 23:09

83

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modular automorphism group of faithful weight

Published on 30 Mar 2026 - 16:46

54

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The norm of the difference of normal linear functionals

Published on 30 Mar 2026 - 20:40

46

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On some inequality in $C^\ast$-algebra

Published on 15 Dec 2020 - 21:16

65

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Diameters of state spaces

Published on 01 Apr 2026 - 8:55

211

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Intersection of ranges of projections

Published on 28 Mar 2026 - 8:42

129

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Representation of the multiplier algebra of a crossed product

Published on 09 Apr 2026 - 0:51

147

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Abelian C*-algebras are stably finite?

Published on 10 Apr 2026 - 23:07

123

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normal states on a type $III_{\lambda}$ factor

Published on 30 Mar 2026 - 20:47

List Question

Definition of normal linear functional

A sufficient condition to determine two weights are equal

$\|A\|,\|B\|\leq 1$. How do I prove $\left(\begin{array}{}1&A&AB\\A^&1&B\\B^A^&B^&1\end{array}\right)$ is positive.

one parameter-family of unitaries lie in the commutant of a von Neuamann algebra

Extension of trace preserving $*$-homomorphisms on dense subalgebras of von Neumann algebras.

subprojections in $C^*$-algebras

Existence minimal projections compact operators

modular automorphism group of faithful weight

The norm of the difference of normal linear functionals

On some inequality in $C^\ast$-algebra

Diameters of state spaces

Intersection of ranges of projections

Representation of the multiplier algebra of a crossed product

Abelian C*-algebras are stably finite?

normal states on a type $III_{\lambda}$ factor

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