Question

If a group algebra acts regularly on a module, can this module be identified as a left ideal?

score 44 · Answer 1 · 2016-03-16 02:21:34

44

Views

If a group algebra acts regularly on a module, can this module be identified as a left ideal?

Published on 16 Mar 2016 - 2:21

score 84 · Answer 2 · 2016-03-18 22:22:39

84

Views

prove $\mathbb{Z}(G\times C_2)\cong (\mathbb{Z}G)C_2$

Published on 18 Mar 2016 - 22:22

score 115 · Answer 3 · 2016-03-28 20:53:26

115

Views

Structure of $\mathbb{Q}S_3$

Published on 28 Mar 2016 - 20:53

score 143 · Answer 4 · 2016-04-03 07:08:46

143

Views

Morita equivalence between $\mathbb{C}[G]$ and $\mathbb{C}[H]$?

Published on 03 Apr 2016 - 7:08

score 36 · Answer 5 · 2016-04-18 21:01:27

36

Views

Which element of $\mathbb{Q}C_5$ will be mapped onto $(0,4)\in \mathbb{Q} \oplus \mathbb{Q}(\zeta)$

Published on 18 Apr 2016 - 21:01

score 427 · Answer 6 · 2016-04-22 20:41:27

427

Views

Natural action of $\mathbb{Z}G$ on $\mathbb{Z}$?

Published on 22 Apr 2016 - 20:41

score 105 · Answer 7 · 2016-05-05 11:22:44

105

Views

Group ring generated by $\mathbb Z$ and the quaternion group

Published on 05 May 2016 - 11:22

score 1.8k · Answer 8 · 2016-05-06 05:57:57

1.8k

Views

A group-ring is commutative if and only if that group is abelian

Published on 06 May 2016 - 5:57

score 89 · Answer 9 · 2016-05-10 13:14:15

89

Views

Units in a group ring $\mathbb{Z}[G]$

Published on 10 May 2016 - 13:14

score 81 · Answer 10 · 2016-05-23 01:28:00

81

Views

Is $\mathbb{Z}[G^n]$ isomorphic to $\bigoplus_n\mathbb{Z}[G]$?

Published on 23 May 2016 - 1:28

score 238 · Answer 11 · 2026-03-23 17:30:33

238

Views

Local group rings

Published on 23 Mar 2026 - 17:30

score 169 · Answer 12 · 2016-06-20 10:12:38

169

Views

Is there a category theory notion of the image of an axiom or predicate under a functor?

Published on 20 Jun 2016 - 10:12

score 180 · Answer 13 · 2016-06-22 12:22:09

180

Views

States of a Group Ring

Published on 22 Jun 2016 - 12:22

score 2.2k · Answer 14 · 2013-04-20 10:50:52

2.2k

Views

For a group-algebra $k[G]$ ($G$ finite), why is a $k[G]$-module the same as a $k$-representation of $G$?

Published on 20 Apr 2013 - 10:50

score 2.8k · Answer 15 · 2013-04-21 23:44:12

2.8k

Views

What does the group ring $\mathbb{Z}[G]$ of a finite group know about $G$?

Published on 21 Apr 2013 - 23:44

List Question

If a group algebra acts regularly on a module, can this module be identified as a left ideal?

prove $\mathbb{Z}(G\times C_2)\cong (\mathbb{Z}G)C_2$

Structure of $\mathbb{Q}S_3$

Morita equivalence between $\mathbb{C}[G]$ and $\mathbb{C}[H]$?

Which element of $\mathbb{Q}C_5$ will be mapped onto $(0,4)\in \mathbb{Q} \oplus \mathbb{Q}(\zeta)$

Natural action of $\mathbb{Z}G$ on $\mathbb{Z}$?

Group ring generated by $\mathbb Z$ and the quaternion group

A group-ring is commutative if and only if that group is abelian

Units in a group ring $\mathbb{Z}[G]$

Is $\mathbb{Z}[G^n]$ isomorphic to $\bigoplus_n\mathbb{Z}[G]$?

Local group rings

Is there a category theory notion of the image of an axiom or predicate under a functor?

States of a Group Ring

For a group-algebra $k[G]$ ($G$ finite), why is a $k[G]$-module the same as a $k$-representation of $G$?

What does the group ring $\mathbb{Z}[G]$ of a finite group know about $G$?

Trending Questions

Popular # Hahtags

Popular Questions