List questions from dihedral-groups

Published on 14 Apr 2026 - 12:36

192

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How can I show that $D_{2n} \cong C_n \rtimes C_2 $

Published on 14 Apr 2026 - 18:25

216

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Understand the free group universal property applied to $D_n$

Published on 13 Apr 2026 - 12:06

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Elements of order 2 in $D_{2n}$

Published on 15 Apr 2026 - 22:08

352

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How to find number of abelian subgroups of diheral group?

Published on 11 Apr 2026 - 15:08

213

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Quotient group of dihedral group

Published on 11 Apr 2026 - 3:57

281

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Rigid motions taking a regular $n$-gon back to itself carry vertices to vertices

Published on 11 Apr 2026 - 23:21

235

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The number of groups $G$ (up to isomorphism) such that $G/\mathbb{Z}_3\cong D_{2n}$

Published on 25 Mar 2026 - 6:06

75

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What mistake have I made in showing these automorphisms generate the group $D_8$?

Published on 14 Apr 2026 - 7:09

598

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Conjugate of elements in the Dihedral Group

Published on 14 Apr 2026 - 13:58

96

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Why is $\langle r\rangle$ characteristic in $D_n$?

Published on 25 Apr 2026 - 6:03

269

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Orders of the Elements of $D_6/Z(D_6)$

Published on 14 Apr 2026 - 19:15

44

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classification of representations of $D_{1009}$

Published on 14 Apr 2026 - 4:49

146

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Composition of elements in dihedral group

Published on 09 Apr 2026 - 11:07

63

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Find a formula for number of orbits under action of $D_{4}$

Published on 14 Apr 2026 - 4:36

List Question

Show that $D_{33}$ is not isomorphic to $D_{11} \oplus Z_{3}$.

How can I show that $D_{2n} \cong C_n \rtimes C_2 $

Understand the free group universal property applied to $D_n$

Elements of order 2 in $D_{2n}$

How to find number of abelian subgroups of diheral group?

Quotient group of dihedral group

Rigid motions taking a regular $n$-gon back to itself carry vertices to vertices

The number of groups $G$ (up to isomorphism) such that $G/\mathbb{Z}_3\cong D_{2n}$

What mistake have I made in showing these automorphisms generate the group $D_8$?

Conjugate of elements in the Dihedral Group

Why is $\langle r\rangle$ characteristic in $D_n$?

Orders of the Elements of $D_6/Z(D_6)$

classification of representations of $D_{1009}$

Composition of elements in dihedral group

Find a formula for number of orbits under action of $D_{4}$

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