Question

How many homomorphisms $f\colon Z_{99} \to Z_{99}$ are there?

score 67 · Answer 1 · 2026-03-27 08:45:59

67

Views

How many homomorphisms $f\colon Z_{99} \to Z_{99}$ are there?

Published on 27 Mar 2026 - 8:45

score 802 · Answer 2 · 2026-03-25 02:57:43

802

Views

Characterizing maximal subgroups of cyclic groups.

Published on 25 Mar 2026 - 2:57

score 249 · Answer 3 · 2019-07-16 00:02:50

249

Views

Simple proof that the order of an element of a group divides order of the group itself

Published on 16 Jul 2019 - 0:02

score 39 · Answer 4 · 2019-07-18 19:20:08

39

Views

Counting sets of subsets of $\mathbb{Z}/n\mathbb{Z}$ with a fixed sum and intersection size.

Published on 18 Jul 2019 - 19:20

score 276 · Answer 5 · 2019-07-19 01:11:22

276

Views

Preimage of a cyclic group under the canonical epimorphism is cyclic

Published on 19 Jul 2019 - 1:11

score 57 · Answer 6 · 2026-03-25 20:20:30

57

Views

Determine whether $F^\times$ has a cyclic subgroup of order $10$ where $F=\mathbb{R}((t)),\mathbb{C}((t))$

Published on 25 Mar 2026 - 20:20

score 51 · Answer 7 · 2019-07-20 17:20:30

51

Views

Validate my proof of for $\forall g \in G$, $|g|$ divides $|G|$ where $(G, \cdot)$ is a finite group.

Published on 20 Jul 2019 - 17:20

score 1.3k · Answer 8 · 2019-07-22 03:36:48

1.3k

Views

Determining whether a base is a Generator in $Z^*_{11}$ as well as differentiating Primitive Root and/or Primitive Element?

Published on 22 Jul 2019 - 3:36

score 1.4k · Answer 9 · 2026-03-25 19:05:44

1.4k

Views

Elaborating why the fundamental group of the circle is infinite cyclic.

Published on 25 Mar 2026 - 19:05

score 79 · Answer 10 · 2019-08-03 16:12:34

79

Views

Checking divisors $k$ of 60 to determine if $A_5$ has subgroups of order $k$ up to isomorphism

Published on 03 Aug 2019 - 16:12

score 221 · Answer 11 · 2026-03-26 01:26:58

221

Views

Non cyclic galois extension

Published on 26 Mar 2026 - 1:26

score 122 · Answer 12 · 2026-03-27 07:20:01

122

Views

proof of some statement about finite field extension

Published on 27 Mar 2026 - 7:20

score 747 · Answer 13 · 2019-08-07 08:32:38

747

Views

Structure of the ring of cyclic polynomials

Published on 07 Aug 2019 - 8:32

score 550 · Answer 14 · 2019-08-12 08:38:28

550

Views

$\text{Aut}(\Bbb Z_n) \cong U(n)$

Published on 12 Aug 2019 - 8:38

score 757 · Answer 15 · 2026-03-27 15:07:45

757

Views

Subgroup of multiplicative group of integers mod n.

Published on 27 Mar 2026 - 15:07

List Question

How many homomorphisms $f\colon Z_{99} \to Z_{99}$ are there?

Characterizing maximal subgroups of cyclic groups.

Simple proof that the order of an element of a group divides order of the group itself

Counting sets of subsets of $\mathbb{Z}/n\mathbb{Z}$ with a fixed sum and intersection size.

Preimage of a cyclic group under the canonical epimorphism is cyclic

Determine whether $F^\times$ has a cyclic subgroup of order $10$ where $F=\mathbb{R}((t)),\mathbb{C}((t))$

Validate my proof of for $\forall g \in G$, $|g|$ divides $|G|$ where $(G, \cdot)$ is a finite group.

Determining whether a base is a Generator in $Z^*_{11}$ as well as differentiating Primitive Root and/or Primitive Element?

Elaborating why the fundamental group of the circle is infinite cyclic.

Checking divisors $k$ of 60 to determine if $A_5$ has subgroups of order $k$ up to isomorphism

Non cyclic galois extension

proof of some statement about finite field extension

Structure of the ring of cyclic polynomials

$\text{Aut}(\Bbb Z_n) \cong U(n)$

Subgroup of multiplicative group of integers mod n.

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