Question

Stuck in proving the Fermat's little theorem (with group theory)

score 352 · Answer 1 · 2026-04-11 20:58:19

352

Views

Stuck in proving the Fermat's little theorem (with group theory)

Published on 11 Apr 2026 - 20:58

score 471 · Answer 2 · 2026-04-15 13:40:27

471

Views

Intersection of three vector subspaces

Published on 15 Apr 2026 - 13:40

score 136 · Answer 3 · 2026-04-12 18:40:51

136

Views

Equivalence of two definitions of rational maps

Published on 12 Apr 2026 - 18:40

score 383 · Answer 4 · 2026-04-09 03:40:58

383

Views

If the initial monomial ideal $in_<(I)$ is square free, then $I$ is a radical ideal.

Published on 09 Apr 2026 - 3:40

score 88 · Answer 5 · 2026-04-11 07:36:24

88

Views

Lattices in $\ell^\infty(X)$

Published on 11 Apr 2026 - 7:36

score 42 · Answer 6 · 2026-04-14 06:58:50

42

Views

Why does it only make sense to talk about roots of polynomial OVER some base field?

Published on 14 Apr 2026 - 6:58

score 234 · Answer 7 · 2026-04-18 11:26:23

234

Views

How to find order of Jacobson Radical

Published on 18 Apr 2026 - 11:26

score 62 · Answer 8 · 2026-04-16 10:34:54

62

Views

extension field of $\mathbb{Q}$

Published on 16 Apr 2026 - 10:34

score 45 · Answer 9 · 2026-04-17 07:40:09

45

Views

Decomposing G/H where H is a cyclic group

Published on 17 Apr 2026 - 7:40

score 118 · Answer 10 · 2026-04-16 04:09:03

118

Views

Show that $\bar G=\left\{ \begin{pmatrix} e^{it} & 0 \\ 0 & e^{is} \\ \end{pmatrix}| t ,s \in \Bbb R\right\}$.

Published on 16 Apr 2026 - 4:09

score 301 · Answer 11 · 2026-04-13 19:07:50

301

Views

Cardinality of quotient group

Published on 13 Apr 2026 - 19:07

score 63 · Answer 12 · 2026-04-14 11:28:28

63

Views

Show that cardinality of $\mathbb{Z}^n/T(\mathbb{Z}^n)$ equals the absolute value of the determinant of the matrix representing the homomorphism T

Published on 14 Apr 2026 - 11:28

score 274 · Answer 13 · 2026-04-11 03:47:48

274

Views

Proof Verification of Multiplicative Group of $(Z_n,+,\times)$

Published on 11 Apr 2026 - 3:47

score 395 · Answer 14 · 2026-04-17 11:03:15

395

Views

$a\cdot(b \cdot c) = d \cdot (e \cdot c) \implies b = (\bar{a}\cdot d) \cdot e$, then $(G, \cdot)$ is a group

Published on 17 Apr 2026 - 11:03

score 154 · Answer 15 · 2026-04-15 14:27:45

154

Views

$R/A$ is a field if and only if $A$ is maximal

Published on 15 Apr 2026 - 14:27

List Question

Stuck in proving the Fermat's little theorem (with group theory)

Intersection of three vector subspaces

Equivalence of two definitions of rational maps

If the initial monomial ideal $in_<(I)$ is square free, then $I$ is a radical ideal.

Lattices in $\ell^\infty(X)$

Why does it only make sense to talk about roots of polynomial OVER some base field?

How to find order of Jacobson Radical

extension field of $\mathbb{Q}$

Decomposing G/H where H is a cyclic group

Show that $\bar G=\left\{ \begin{pmatrix} e^{it} & 0 \\ 0 & e^{is} \\ \end{pmatrix}| t ,s \in \Bbb R\right\}$.

Cardinality of quotient group

Show that cardinality of $\mathbb{Z}^n/T(\mathbb{Z}^n)$ equals the absolute value of the determinant of the matrix representing the homomorphism T

Proof Verification of Multiplicative Group of $(Z_n,+,\times)$

$a\cdot(b \cdot c) = d \cdot (e \cdot c) \implies b = (\bar{a}\cdot d) \cdot e$, then $(G, \cdot)$ is a group

$R/A$ is a field if and only if $A$ is maximal

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