List questions from representation-theory

Published on 20 Mar 2026 - 14:19

56

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Minimal dimension needed for linearization of group action

Published on 18 Mar 2026 - 5:27

322

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How do you prove that category of representations of $G_m$ is equivalent to the category of finite dimensional graded vector spaces?

Published on 17 Mar 2026 - 22:29

38

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Assuming unitarity of arbitrary representations in proof of Schur's lemma

Published on 17 Mar 2026 - 22:00

79

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Are representation isomorphisms of permutation representations necessarily permutation matrices?

Published on 21 Mar 2026 - 5:32

161

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idempotent in quiver theory

Published on 17 Mar 2026 - 10:49

59

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Help with a definition in Serre's Linear Representations of Finite Groups

Published on 17 Mar 2026 - 11:44

113

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Are there special advantages in this representation of sl2?

Published on 17 Mar 2026 - 20:02

186

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Properties of symmetric and alternating characters

Published on 19 Mar 2026 - 9:08

276

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Representation theory of $S_3$

Published on 17 Mar 2026 - 21:59

1.2k

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$SU(2)$ adjoint and fundamental transformations

Published on 23 Mar 2026 - 0:44

156

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$(\pi,V) $ is irreducible $\iff$ $(\pi^{},V^{})$ is irreducible

Published on 20 Mar 2026 - 7:03

1k

Views

$SU(3)$ irreps decomposition in subgroup irreps

Published on 20 Mar 2026 - 5:26

51

Views

A kind of wedge product for matrics

Published on 22 Mar 2026 - 13:07

153

Views

Tensors transformations under $so(4)$

Published on 19 Mar 2026 - 20:39

List Question

How does $\operatorname{Ind}^G_H$ behave with respect to $\bigoplus$?

Minimal dimension needed for linearization of group action

How do you prove that category of representations of $G_m$ is equivalent to the category of finite dimensional graded vector spaces?

Assuming unitarity of arbitrary representations in proof of Schur's lemma

Are representation isomorphisms of permutation representations necessarily permutation matrices?

idempotent in quiver theory

Help with a definition in Serre's Linear Representations of Finite Groups

Are there special advantages in this representation of sl2?

Properties of symmetric and alternating characters

Representation theory of $S_3$

$SU(2)$ adjoint and fundamental transformations

$(\pi,V) $ is irreducible $\iff$ $(\pi^{},V^{})$ is irreducible

$SU(3)$ irreps decomposition in subgroup irreps

A kind of wedge product for matrics

Tensors transformations under $so(4)$

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