List questions from group-rings

Published on 15 Apr 2026 - 22:54

197

Views

Question on Group ring $\mathbb{Q}G$ where $G$ is a finite group

Published on 16 Apr 2026 - 4:57

660

Views

The group ring of a ring.

Published on 10 May 2026 - 12:27

37

Views

Analogue for Group Rings for multiplicative sets

Published on 12 Apr 2026 - 2:50

349

Views

Description of the group $1+J(FG),$ where $J(FG)$ is jacobson radical of the group ring $GF.$

Published on 16 Apr 2026 - 14:57

296

Views

Finding idempotents in group algebra over $A_n$

Published on 14 Apr 2026 - 18:06

85

Views

$G$ finite group and $\mathbb{C}[G]$ its group ring, show: $K_i = \sum_{a_k\in cl_G(a_i)} a_k $, then $Z(\mathbb{C}[G])=span_\mathbb{C}(K_1,...,K_n)$

Published on 15 Apr 2026 - 4:44

35

Views

Showing that three rings are isomorphic

Published on 14 Apr 2026 - 1:02

298

Views

Group ring isomorphic to matrix ring

Published on 15 Apr 2026 - 13:58

156

Views

Generators of $1+\Delta (G)$, where $\Delta(G)$ is augmentation ideal of group ring $FG.$

Published on 13 Apr 2026 - 22:37

144

Views

How to do congruence-class arithmetic?

Published on 07 May 2026 - 7:10

139

Views

Dimension of $J(F(GL_2(3)))$, where $J$ stands for Jacobson radical.

Published on 15 Apr 2026 - 14:24

66

Views

Wedderburn Decomposition by using Clifford theorem.

Published on 12 Apr 2026 - 13:10

66

Views

Onto Algebra homomorphism between group rings.

Published on 10 Apr 2026 - 1:44

199

Views

No onto map between group algebras $FS_5$ onto $M_6(F)$.

Published on 16 Apr 2026 - 19:49

List Question

Reference for Kaplansky's proof that in $\mathbb{C}[G]$, $ab=1$ implies $ba=1$

Question on Group ring $\mathbb{Q}G$ where $G$ is a finite group

The group ring of a ring.

Analogue for Group Rings for multiplicative sets

Description of the group $1+J(FG),$ where $J(FG)$ is jacobson radical of the group ring $GF.$

Finding idempotents in group algebra over $A_n$

$G$ finite group and $\mathbb{C}[G]$ its group ring, show: $K_i = \sum_{a_k\in cl_G(a_i)} a_k $, then $Z(\mathbb{C}[G])=span_\mathbb{C}(K_1,...,K_n)$

Showing that three rings are isomorphic

Group ring isomorphic to matrix ring

Generators of $1+\Delta (G)$, where $\Delta(G)$ is augmentation ideal of group ring $FG.$

How to do congruence-class arithmetic?

Dimension of $J(F(GL_2(3)))$, where $J$ stands for Jacobson radical.

Wedderburn Decomposition by using Clifford theorem.

Onto Algebra homomorphism between group rings.

No onto map between group algebras $FS_5$ onto $M_6(F)$.

Trending Questions

Popular # Hahtags

Popular Questions