User Matthew Daws

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Uniqueness of the predual of a W*-algebra

answered Oct 1, 2021 at 17:34

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Show that $V_G: L^2(G\times G, \mu \times \mu)\to L^2(G\times G, \mu \times \mu)$ defined by $V_G(f)(x,y) = f(xy,y)$ is well-defined

answered Dec 21, 2021 at 16:19

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Takesaki theorem 2.6

answered Nov 16, 2021 at 15:54

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$(\iota \otimes f)(X) = 0$ for all $f \in B^*$ implies $X=0$

answered Nov 17, 2021 at 16:22

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Opposite $C^*$ algebras

answered May 8, 2021 at 13:43

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Show convergence of net associated to GNS-triplet associated to state on a $C^*$-algebra

answered May 12, 2021 at 11:14

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Non-degeneracy of comultiplication (multiplier Hopf algebras)

answered Apr 19, 2021 at 13:04

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Why is $q(f,g) = (f-g,0)$ not adjointable?

answered Aug 14, 2021 at 13:32

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Direct sum of multiplier algebras

answered Aug 24, 2021 at 20:36

4 votes

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Takesaki's proof of the Kaplansky density theorem

answered Jan 5, 2022 at 19:46

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Extending a $\sigma$-weakly continuous map: Takesaki IV.5.13

answered Jan 12, 2022 at 8:56

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Why does the Fourier algebra $A(G)$ consist precisely of the set of matrix coefficients of the LRR?

answered Jun 7, 2022 at 8:47

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Support projection vs closed support projection of a normal state in enveloping von Neumann algebra

answered Oct 27, 2022 at 9:26

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Direct sums of operator spaces

answered Sep 14, 2023 at 10:50

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Completely contractive Banach algebra structure on the dual of a Hopf $C^*$-algebra

answered Oct 2, 2023 at 15:42

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Trying to recover a proof of the spectral mapping theorem from old thesis/paper with continuous functional calculus

answered Oct 14, 2020 at 9:33

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Canonical multiplication representation of self-adjoint operator in quantum chemistry and coding theory research

answered Oct 16, 2020 at 11:30

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Tensoring adjointable maps on Hilbert modules

answered Jul 29, 2019 at 21:07

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The completion of $F/\text{Ker}(M)$ is isomorphic to the closure of the range of $M$

answered Mar 21, 2019 at 10:48

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The definiton of a multiplier on a Banach algebra

answered Jan 7, 2019 at 13:18

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Extensions of completely positive maps

answered Mar 1, 2017 at 22:32

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Tensor product space with projective norm is incomplete

answered Jul 24, 2017 at 8:25

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Non-empty resolvent set, then operator closed?

answered Mar 17, 2017 at 9:33

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Von Neumann Algebra isomorphism extension

answered May 16, 2017 at 19:48

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Tensor product of measure spaces

answered Jun 6, 2017 at 20:33

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Showing the following inclusion between two subalgebras of $\mathcal{B}(F)$

answered Nov 28, 2017 at 8:23

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Arens regularity of an ultrapower of an Arens regular Banach Algebra?

answered Feb 27, 2018 at 12:02

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Separability of Hilbert spaces from GNS construction.

answered May 29, 2012 at 8:08

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Continuity of the product map

answered Jun 12, 2014 at 19:03

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Peter-Weyl theorem as proven in Cartier's Primer

answered Feb 24, 2012 at 17:55

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264 Answers

Uniqueness of the predual of a W*-algebra

Show that $V_G: L^2(G\times G, \mu \times \mu)\to L^2(G\times G, \mu \times \mu)$ defined by $V_G(f)(x,y) = f(xy,y)$ is well-defined

Takesaki theorem 2.6

$(\iota \otimes f)(X) = 0$ for all $f \in B^*$ implies $X=0$

Opposite $C^*$ algebras

Show convergence of net associated to GNS-triplet associated to state on a $C^*$-algebra

Non-degeneracy of comultiplication (multiplier Hopf algebras)

Why is $q(f,g) = (f-g,0)$ not adjointable?

Direct sum of multiplier algebras

Takesaki's proof of the Kaplansky density theorem

Extending a $\sigma$-weakly continuous map: Takesaki IV.5.13

Why does the Fourier algebra $A(G)$ consist precisely of the set of matrix coefficients of the LRR?

Support projection vs closed support projection of a normal state in enveloping von Neumann algebra

Direct sums of operator spaces

Completely contractive Banach algebra structure on the dual of a Hopf $C^*$-algebra

Trying to recover a proof of the spectral mapping theorem from old thesis/paper with continuous functional calculus

Canonical multiplication representation of self-adjoint operator in quantum chemistry and coding theory research

Tensoring adjointable maps on Hilbert modules

The completion of $F/\text{Ker}(M)$ is isomorphic to the closure of the range of $M$

The definiton of a multiplier on a Banach algebra

Extensions of completely positive maps

Tensor product space with projective norm is incomplete

Non-empty resolvent set, then operator closed?

Von Neumann Algebra isomorphism extension

Tensor product of measure spaces

Showing the following inclusion between two subalgebras of $\mathcal{B}(F)$

Arens regularity of an ultrapower of an Arens regular Banach Algebra?

Separability of Hilbert spaces from GNS construction.

Continuity of the product map

Peter-Weyl theorem as proven in Cartier's Primer