Question

M.Isaacs Character Theory of Finite Groups Problem 6.18 Proof for Extendible to G

score 143 · Answer 1 · 2021-11-08 13:49:31

143

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M.Isaacs Character Theory of Finite Groups Problem 6.18 Proof for Extendible to G

Published on 08 Nov 2021 - 13:49

score 112 · Answer 2 · 2021-11-09 13:38:38

112

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Degrees of irreducible constituents of induced characters

Published on 09 Nov 2021 - 13:38

score 246 · Answer 3 · 2021-11-09 20:18:31

246

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Motivation behind representations over $\operatorname{Hom}_{K}(V,W)$

Published on 09 Nov 2021 - 20:18

score 62 · Answer 4 · 2021-11-10 18:48:30

62

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Proof of character of representation corresponding to a nonsquare matrix

Published on 10 Nov 2021 - 18:48

score 35 · Answer 5 · 2026-02-23 08:28:28

35

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Is the identity $(\chi_V,\chi_V)=\sum_{i=1}^k a_i^2$ appearing in character theory related to Parseval’s identity from Fourier analysis?

Published on 23 Feb 2026 - 8:28

score 220 · Answer 6 · 2026-02-23 08:24:59

220

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Unitary characters of $1$-torus

Published on 23 Feb 2026 - 8:24

score 176 · Answer 7 · 2021-11-15 16:53:18

176

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"Centralizer" of an irreducible character?

Published on 15 Nov 2021 - 16:53

score 128 · Answer 8 · 2021-11-23 22:37:57

128

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Irreducibility of finite subgroups in $GL(n,\mathbb{Q})$

Published on 23 Nov 2021 - 22:37

score 50 · Answer 9 · 2021-11-24 16:41:01

50

Views

Characters determine exactly representations in 4 dimensions?

Published on 24 Nov 2021 - 16:41

score 170 · Answer 10 · 2021-11-24 23:00:18

170

Views

Relation between the index of a group and its center and the order of the commutator

Published on 24 Nov 2021 - 23:00

score 202 · Answer 11 · 2021-11-26 04:36:06

202

Views

Character of $Sym^n V$?

Published on 26 Nov 2021 - 4:36

score 124 · Answer 12 · 2021-11-27 06:18:35

124

Views

Let $G$ be a finite group of order $20$, and consider the representation of $G$ over $\Bbb C$

Published on 27 Nov 2021 - 6:18

score 98 · Answer 13 · 2021-11-28 08:29:36

98

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why $χ$ is linear combination of identity representation and regular representation with integer coefficients?

Published on 28 Nov 2021 - 8:29

score 183 · Answer 14 · 2021-11-28 17:23:06

183

Views

Let $G$ be a finite group.Let $(π,V)$ and $(γ,W)$ be irreducible representation over $\Bbb C$

Published on 28 Nov 2021 - 17:23

score 98 · Answer 15 · 2021-11-30 00:05:02

98

Views

Orthogonality of characters for powers of a character

Published on 30 Nov 2021 - 0:05

List Question

M.Isaacs Character Theory of Finite Groups Problem 6.18 Proof for Extendible to G

Degrees of irreducible constituents of induced characters

Motivation behind representations over $\operatorname{Hom}_{K}(V,W)$

Proof of character of representation corresponding to a nonsquare matrix

Is the identity $(\chi_V,\chi_V)=\sum_{i=1}^k a_i^2$ appearing in character theory related to Parseval’s identity from Fourier analysis?

Unitary characters of $1$-torus

"Centralizer" of an irreducible character?

Irreducibility of finite subgroups in $GL(n,\mathbb{Q})$

Characters determine exactly representations in 4 dimensions?

Relation between the index of a group and its center and the order of the commutator

Character of $Sym^n V$?

Let $G$ be a finite group of order $20$, and consider the representation of $G$ over $\Bbb C$

why $χ$ is linear combination of identity representation and regular representation with integer coefficients?

Let $G$ be a finite group.Let $(π,V)$ and $(γ,W)$ be irreducible representation over $\Bbb C$

Orthogonality of characters for powers of a character

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