List questions from group-isomorphism

Published on 30 Mar 2026 - 13:20

145

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Isomorphism of Groups?

Published on 29 Mar 2026 - 19:09

685

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Want to prove $Aut(A_{n})\simeq GL(n, \mathbb{Z})$ where $A_{n}$ is a free abelian group of rank $n$

Published on 26 Mar 2026 - 9:51

84

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Confusion regarding the identity (or non-identity) of two groups

Published on 04 Feb 2017 - 3:37

554

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How do I embed p-groups into the group of upper uni-triangular matrices?

Published on 26 Mar 2026 - 6:25

420

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Conditions on $\alpha, \beta$ under which $A \rtimes_{\alpha} B $ and $A \rtimes_{\beta} B$ are isomorphic

Published on 28 Mar 2026 - 20:58

1k

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Identify the Quotient Group $G/H$ Using the First Isomorphism Theorem

Published on 05 Feb 2017 - 22:52

207

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Power Map on Monoids

Published on 05 Feb 2017 - 23:32

36

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Identifying an isomorphism

Published on 06 Feb 2017 - 6:13

92

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Finding what elements are in the group centre and proving to which group it's isomorphic

Published on 07 Feb 2017 - 11:44

3.3k

Views

$SL(2;\mathbb{R})$ $SO(2, 1;\mathbb{R})$ isomorphism

Published on 08 Feb 2017 - 22:57

93

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How many unique Groups (not isomorphic to each other) can we make out of set of size n?

Published on 10 Feb 2017 - 6:17

373

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Check if there is any isomorphism between two given groups

Published on 10 Feb 2017 - 18:23

33.6k

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Proving a set of automorphisms of a group is a group under composition

Published on 10 Feb 2017 - 20:19

615

Views

How to prove inner automorphisms are a subgroup to automorphisms

Published on 11 Feb 2017 - 4:55

List Question

Is there an isomorphism between A4 and D6?

Isomorphism of Groups?

Want to prove $Aut(A_{n})\simeq GL(n, \mathbb{Z})$ where $A_{n}$ is a free abelian group of rank $n$

Confusion regarding the identity (or non-identity) of two groups

How do I embed p-groups into the group of upper uni-triangular matrices?

Conditions on $\alpha, \beta$ under which $A \rtimes_{\alpha} B $ and $A \rtimes_{\beta} B$ are isomorphic

Identify the Quotient Group $G/H$ Using the First Isomorphism Theorem

Power Map on Monoids

Identifying an isomorphism

Finding what elements are in the group centre and proving to which group it's isomorphic

$SL(2;\mathbb{R})$ $SO(2, 1;\mathbb{R})$ isomorphism

How many unique Groups (not isomorphic to each other) can we make out of set of size n?

Check if there is any isomorphism between two given groups

Proving a set of automorphisms of a group is a group under composition

How to prove inner automorphisms are a subgroup to automorphisms

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