List questions from direct-product

Published on 13 Sep 2017 - 13:07

2.6k

Views

Definition of weak product/direct sum of groups

Published on 15 Sep 2017 - 8:23

47

Views

How show that not exist two subgroups $H,K \leqslant S_{4} $ such that $H \times K\approx \operatorname{Dih}_4 $

Published on 09 Oct 2017 - 3:57

476

Views

Sylow subgroups of semidirect products as direct products

Published on 19 Oct 2017 - 12:00

80

Views

An identity is true for finite permutation groups, but is it true for infinite ones?

Published on 27 Mar 2026 - 16:09

68

Views

Conjugates of semidirect product complements

Published on 21 Oct 2017 - 15:17

1.3k

Views

Direct Product of Cyclic Groups

Published on 22 Oct 2017 - 2:39

244

Views

Number of elements in direct product of two groups

Published on 24 Feb 2026 - 10:17

208

Views

When is countable direct product of projective modules again projective?

Published on 02 Nov 2017 - 20:22

237

Views

For any $n ≥3$ there are exactly $4$ distinct homomorphisms from $Z_2$ into $Aut(Z_2^n).$

Published on 11 Nov 2017 - 19:06

514

Views

Let $S = \{p + q\sqrt{2} \mid p, q ∈ \Bbb Q\}$ and $T = \{r + s\sqrt{3} \mid r, s ∈ \Bbb Q\}.$ Prove: $S ∩ T = \Bbb Q$.

Published on 16 Nov 2017 - 13:32

368

Views

A difficulty in understanding the definition of a direct sum and direct product for infinite number of factors.

Published on 17 Nov 2017 - 20:04

372

Views

Are dihedral groups indecomposable?

Published on 19 Nov 2017 - 10:51

162

Views

When is the product of two subgroups isomorphic to their direct product?

Published on 19 Nov 2017 - 11:03

350

Views

Direct Product of Group: Isomorphic Subgroups

Published on 20 Nov 2017 - 6:14

List Question

order 20 group G and order 27 group H

Definition of weak product/direct sum of groups

How show that not exist two subgroups $H,K \leqslant S_{4} $ such that $H \times K\approx \operatorname{Dih}_4 $

Sylow subgroups of semidirect products as direct products

An identity is true for finite permutation groups, but is it true for infinite ones?

Conjugates of semidirect product complements

Direct Product of Cyclic Groups

Number of elements in direct product of two groups

When is countable direct product of projective modules again projective?

For any $n ≥3$ there are exactly $4$ distinct homomorphisms from $Z_2$ into $Aut(Z_2^n).$

Let $S = \{p + q\sqrt{2} \mid p, q ∈ \Bbb Q\}$ and $T = \{r + s\sqrt{3} \mid r, s ∈ \Bbb Q\}.$ Prove: $S ∩ T = \Bbb Q$.

A difficulty in understanding the definition of a direct sum and direct product for infinite number of factors.

Are dihedral groups indecomposable?

When is the product of two subgroups isomorphic to their direct product?

Direct Product of Group: Isomorphic Subgroups

Trending Questions

Popular # Hahtags

Popular Questions