List questions from dihedral-groups

Published on 25 Mar 2019 - 16:47

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

Published on 25 Mar 2026 - 9:26

215

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Understand the free group universal property applied to $D_n$

Published on 25 Mar 2026 - 12:53

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

Published on 13 Apr 2019 - 6:05

349

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How to find number of abelian subgroups of diheral group?

Published on 15 Apr 2019 - 9:26

211

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Quotient group of dihedral group

Published on 25 Mar 2026 - 19:06

279

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

Published on 25 Mar 2026 - 23:39

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

72

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

Published on 25 Apr 2019 - 4:33

595

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Conjugate of elements in the Dihedral Group

Published on 27 Apr 2019 - 12:49

92

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

Published on 19 Mar 2026 - 19:14

267

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

Published on 25 Mar 2026 - 19:05

42

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classification of representations of $D_{1009}$

Published on 25 Mar 2026 - 14:22

143

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Composition of elements in dihedral group

Published on 16 May 2019 - 16:16

60

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

Published on 21 May 2019 - 15:32

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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