Question

$A_5$ or the icosahedral group $I$ is not isomorphic to any subgroup of the binary icosahedral group $2I$

score 72 · Answer 1 · 2026-03-25 12:35:05

72

Views

$A_5$ or the icosahedral group $I$ is not isomorphic to any subgroup of the binary icosahedral group $2I$

Published on 25 Mar 2026 - 12:35

score 234 · Answer 2 · 2026-03-25 14:25:19

234

Views

The only group $G$ with one $A$ and one $B$ as composition factors is $G = A\times B$ (where $A$ and $B$ are non-abelian, finite and simple)

Published on 25 Mar 2026 - 14:25

score 499 · Answer 3 · 2026-03-26 22:54:14

499

Views

Exactness of Inflation restriction sequence, Galois Cohomology

Published on 26 Mar 2026 - 22:54

score 146 · Answer 4 · 2020-05-12 16:34:36

146

Views

Why is $C_G(A)$ a normal subgroup of $B$ in this context?

Published on 12 May 2020 - 16:34

score 56 · Answer 5 · 2020-05-13 12:42:52

56

Views

How to write down presentation of R-Modules

Published on 13 May 2020 - 12:42

score 31 · Answer 6 · 2026-03-26 14:26:34

31

Views

Comparing the exactness of $(\prod_{\lambda\in \Lambda}M_{\lambda})$ and $M_{\lambda}$ on a long exact sequence.

Published on 26 Mar 2026 - 14:26

score 153 · Answer 7 · 2020-05-13 19:52:40

153

Views

Short exact sequence and the order of groups

Published on 13 May 2020 - 19:52

score 271 · Answer 8 · 2026-03-26 08:07:15

271

Views

Cohomology of a monad.

Published on 26 Mar 2026 - 8:07

score 93 · Answer 9 · 2020-05-15 20:26:59

93

Views

Clarification in early example of exact sequence in Eisenbud's Commutative Algebra

Published on 15 May 2020 - 20:26

score 276 · Answer 10 · 2020-05-16 18:37:07

276

Views

In the following commutative diagram, with exact rows and columns, is $j_1$ surjective?

Published on 16 May 2020 - 18:37

score 195 · Answer 11 · 2020-05-16 18:39:28

195

Views

Prove that there exists the exact sequence (over Z) 0 → Z 2 →Z 4 → Z 4 → Z 2 → 0 .

Published on 16 May 2020 - 18:39

score 121 · Answer 12 · 2026-03-25 07:44:53

121

Views

Suppose that $g$ is isomorphism. Then prove that $f$ is monic and $h$ is epic.

Published on 25 Mar 2026 - 7:44

score 164 · Answer 13 · 2020-05-17 19:43:55

164

Views

Commutative Diagram of Vector Spaces with Short Exact rows

Published on 17 May 2020 - 19:43

score 53 · Answer 14 · 2026-03-25 21:22:18

53

Views

Properties of an A-module

Published on 25 Mar 2026 - 21:22

score 321 · Answer 15 · 2020-05-20 02:23:30

321

Views

Short exact sequences of finite abelian groups

Published on 20 May 2020 - 2:23

List Question

$A_5$ or the icosahedral group $I$ is not isomorphic to any subgroup of the binary icosahedral group $2I$

The only group $G$ with one $A$ and one $B$ as composition factors is $G = A\times B$ (where $A$ and $B$ are non-abelian, finite and simple)

Exactness of Inflation restriction sequence, Galois Cohomology

Why is $C_G(A)$ a normal subgroup of $B$ in this context?

How to write down presentation of R-Modules

Comparing the exactness of $(\prod_{\lambda\in \Lambda}M_{\lambda})$ and $M_{\lambda}$ on a long exact sequence.

Short exact sequence and the order of groups

Cohomology of a monad.

Clarification in early example of exact sequence in Eisenbud's Commutative Algebra

In the following commutative diagram, with exact rows and columns, is $j_1$ surjective?

Prove that there exists the exact sequence (over Z) 0 → Z 2 →Z 4 → Z 4 → Z 2 → 0 .

Suppose that $g$ is isomorphism. Then prove that $f$ is monic and $h$ is epic.

Commutative Diagram of Vector Spaces with Short Exact rows

Properties of an A-module

Short exact sequences of finite abelian groups

Trending Questions

Popular # Hahtags

Popular Questions