List questions from characters

Published on 02 Oct 2023 - 4:30

232

Views

Exercise 4.4 (b) for Isaacs' Character Theory of Finite Groups

Published on 05 Oct 2023 - 13:28

107

Views

$\#imagef=\#imagef^*$, order of image of dual and image of original homomorphism is the same

Published on 08 Oct 2023 - 10:20

132

Views

Restriction of irreducible representation to subgroup of index 2

Published on 09 Oct 2023 - 19:25

104

Views

$\chi(n)=\frac{\tau_k(\chi)}{\sqrt k}\sum_{m=1}^k \bar\chi(m)e^{-\frac{2\pi imn}{k}}$

Published on 19 Mar 2026 - 12:26

101

Views

Exercise 2.18 in Isaacs' "Character Theory of Finite Groups"

Published on 28 Oct 2023 - 19:29

82

Views

Formula for $\chi(g)\chi(h)$, where $\chi$ is an irreducible character of $G$

Published on 07 Nov 2023 - 17:40

77

Views

The number of self-inverse conjugacy classes of a group is equal to the number of real irreducible characters

Published on 07 Nov 2023 - 19:56

78

Views

Linear combination of a character

Published on 23 Feb 2026 - 7:40

54

Views

Characters of $\mathbb{S}_3$

Published on 13 Nov 2023 - 21:02

51

Views

Conductor of determinant of a Galois representation divides the conductor of the representation

Published on 25 Mar 2026 - 12:49

116

Views

Determine conjugacy classes from group representation for character table

Published on 18 Nov 2023 - 6:51

53

Views

A faster way to do induction from character table of subgroup to larger group by hand? $S_4$ to $S_5$ as example

Published on 20 Mar 2026 - 23:43

24

Views

Understanding how elements in the error group induce different actions on characters

Published on 30 Nov 2023 - 14:26

43

Views

Convolution of class functions in terms of integrals over maximal torus

Published on 30 Nov 2023 - 15:29

List Question

The set of characters

Exercise 4.4 (b) for Isaacs' Character Theory of Finite Groups

$\#imagef=\#imagef^*$, order of image of dual and image of original homomorphism is the same

Restriction of irreducible representation to subgroup of index 2

$\chi(n)=\frac{\tau_k(\chi)}{\sqrt k}\sum_{m=1}^k \bar\chi(m)e^{-\frac{2\pi imn}{k}}$

Exercise 2.18 in Isaacs' "Character Theory of Finite Groups"

Formula for $\chi(g)\chi(h)$, where $\chi$ is an irreducible character of $G$

The number of self-inverse conjugacy classes of a group is equal to the number of real irreducible characters

Linear combination of a character

Characters of $\mathbb{S}_3$

Conductor of determinant of a Galois representation divides the conductor of the representation

Determine conjugacy classes from group representation for character table

A faster way to do induction from character table of subgroup to larger group by hand? $S_4$ to $S_5$ as example

Understanding how elements in the error group induce different actions on characters

Convolution of class functions in terms of integrals over maximal torus

Trending Questions

Popular # Hahtags

Popular Questions