Question

Algebraic isomorphism between two C$^\ast$-algebras implies $\ast$-isomorphic

score 136 · Answer 1 · 2026-04-12 19:09:59

136

Views

Algebraic isomorphism between two C$^\ast$-algebras implies $\ast$-isomorphic

Published on 12 Apr 2026 - 19:09

score 346 · Answer 2 · 2026-04-11 12:41:05

346

Views

Why the norm is $>1$ for one projection operator?

Published on 11 Apr 2026 - 12:41

score 57 · Answer 3 · 2026-04-12 07:34:57

57

Views

Decomposition of representation of GCR $C^*$-algebra in a non-separable case

Published on 12 Apr 2026 - 7:34

score 29 · Answer 4 · 2026-04-13 05:17:14

29

Views

What are the morphisms in the domain of the character space functor for non-unital comm. Banach algebras?

Published on 13 Apr 2026 - 5:17

score 56 · Answer 5 · 2026-04-12 15:38:46

56

Views

Decomposition of an operator $x\in B(H\otimes K)$ as a sum $x=\sum_{i,j} x_{ij}\otimes E_{ij}$.

Published on 12 Apr 2026 - 15:38

score 72 · Answer 6 · 2026-03-26 22:58:00

72

Views

Integral in lemma 1.20 in Takesaki's book

Published on 26 Mar 2026 - 22:58

score 68 · Answer 7 · 2026-04-10 03:40:26

68

Views

Properties of Basic Construction in von Neumann Algebras

Published on 10 Apr 2026 - 3:40

score 65 · Answer 8 · 2026-04-08 20:56:29

65

Views

Difficulty in showing an inclusion of operator spaces

Published on 08 Apr 2026 - 20:56

score 58 · Answer 9 · 2026-04-01 03:44:23

58

Views

Multiplicity theory of representations of non-separable commutative $C^*$-algebras

Published on 01 Apr 2026 - 3:44

score 63 · Answer 10 · 2022-09-13 14:44:58

63

Views

Trying to compute $\operatorname{kernel}$ of the map $\pi\otimes \rho: A \otimes^{\text{min}} B \to A/I \otimes^{\text{min}} B/J$

Published on 13 Sep 2022 - 14:44

score 149 · Answer 11 · 2026-04-13 01:46:59

149

Views

Can the fact "If $\phi$ is a Hermitian linear functional on a $C^$-algebra $A$ then $||\phi|| = \sup\{\phi(x):x = x^, ||x|| = 1\}$" be generalized?

Published on 13 Apr 2026 - 1:46

score 30 · Answer 12 · 2026-04-01 03:40:59

30

Views

equivalent projections in a type III factor

Published on 01 Apr 2026 - 3:40

score 68 · Answer 13 · 2026-04-12 22:26:58

68

Views

$u$ is a projection on $B(H)$ and $\overline{\text{Ran}(qp)}=\overline{\text{Ran}(u)}$

Published on 12 Apr 2026 - 22:26

score 36 · Answer 14 · 2022-09-17 07:06:30

36

Views

Relations between projections $p,q,r$ in $B(H)$

Published on 17 Sep 2022 - 7:06

score 78 · Answer 15 · 2026-04-12 09:44:20

78

Views

Approximating a normal operator by invertible normal operators

Published on 12 Apr 2026 - 9:44

List Question

Algebraic isomorphism between two C$^\ast$-algebras implies $\ast$-isomorphic

Why the norm is $>1$ for one projection operator?

Decomposition of representation of GCR $C^*$-algebra in a non-separable case

What are the morphisms in the domain of the character space functor for non-unital comm. Banach algebras?

Decomposition of an operator $x\in B(H\otimes K)$ as a sum $x=\sum_{i,j} x_{ij}\otimes E_{ij}$.

Integral in lemma 1.20 in Takesaki's book

Properties of Basic Construction in von Neumann Algebras

Difficulty in showing an inclusion of operator spaces

Multiplicity theory of representations of non-separable commutative $C^*$-algebras

Trying to compute $\operatorname{kernel}$ of the map $\pi\otimes \rho: A \otimes^{\text{min}} B \to A/I \otimes^{\text{min}} B/J$

Can the fact "If $\phi$ is a Hermitian linear functional on a $C^$-algebra $A$ then $||\phi|| = \sup\{\phi(x):x = x^, ||x|| = 1\}$" be generalized?

equivalent projections in a type III factor

$u$ is a projection on $B(H)$ and $\overline{\text{Ran}(qp)}=\overline{\text{Ran}(u)}$

Relations between projections $p,q,r$ in $B(H)$

Approximating a normal operator by invertible normal operators

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