Question

Minimal distance from a point to other 2 points in 3D

score 23 · Answer 1 · 2026-04-15 09:54:09

23

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Minimal distance from a point to other 2 points in 3D

Published on 15 Apr 2026 - 9:54

score 1.1k · Answer 2 · 2026-04-12 07:49:47

1.1k

Views

What are free variables when solving $Ax = 0$?

Published on 12 Apr 2026 - 7:49

score 82 · Answer 3 · 2026-05-11 05:08:04

82

Views

Prove that $(V_{1} \times .......\times V_{m})'$ and $V'_{1} \times .......\times V'_m$ are isomorphic vector spaces

Published on 11 May 2026 - 5:08

score 937 · Answer 4 · 2026-05-10 16:57:17

937

Views

Is the set $\{X \in \mathcal{M}({m \times n}) : \rho(M-NX) < 1\} $ connected?

Published on 10 May 2026 - 16:57

score 70 · Answer 5 · 2026-04-13 03:19:38

70

Views

Find the matrix representation of a linear map

Published on 13 Apr 2026 - 3:19

score 247 · Answer 6 · 2026-05-10 13:26:31

247

Views

Dimension of homology of $q$-skeleton

Published on 10 May 2026 - 13:26

score 111 · Answer 7 · 2026-04-12 01:48:05

111

Views

What is the difference in writing $a^{i}_j$ and $a_{i}^j$ for a matrix?

Published on 12 Apr 2026 - 1:48

score 68 · Answer 8 · 2026-04-08 21:16:10

68

Views

Simple Eigenspace Calculation

Published on 08 Apr 2026 - 21:16

score 616 · Answer 9 · 2026-04-11 05:46:04

616

Views

How can the external tensor product of irreducible complex representations be irreducible?

Published on 11 Apr 2026 - 5:46

score 175 · Answer 10 · 2026-04-15 01:16:51

175

Views

Show that this $\mathbb{R}^2$ is an euclidean vector space

Published on 15 Apr 2026 - 1:16

score 371 · Answer 11 · 2026-05-10 14:56:46

371

Views

Why does the set of integer vectors in the nullspace of $\mathbf{A}$ constitute a lattice?

Published on 10 May 2026 - 14:56

score 59 · Answer 12 · 2026-04-16 04:42:38

59

Views

Prove that $\left\|\lambda\vec{u}+\mu\vec{v}\right\|\leq|\lambda|\cdot\left\|\vec{u}\right\|+|\mu|\cdot\left\|\vec{v}\right\|$

Published on 16 Apr 2026 - 4:42

score 3.7k · Answer 13 · 2026-04-14 16:58:26

3.7k

Views

Show that the composition of two reflection is a rotation

Published on 14 Apr 2026 - 16:58

score 69 · Answer 14 · 2026-04-17 01:08:44

69

Views

arrangement of basis

Published on 17 Apr 2026 - 1:08

score 223 · Answer 15 · 2026-05-10 18:05:20

223

Views

Prove that $\operatorname{span}(\{x ∈ V: x $ is an eigenvector of $T\}) = E_{λ_1} ⊕ E_{λ_2} ⊕· · ·⊕E_{λ_k}.$

Published on 10 May 2026 - 18:05

List Question

Minimal distance from a point to other 2 points in 3D

What are free variables when solving $Ax = 0$?

Prove that $(V_{1} \times .......\times V_{m})'$ and $V'_{1} \times .......\times V'_m$ are isomorphic vector spaces

Is the set $\{X \in \mathcal{M}({m \times n}) : \rho(M-NX) < 1\} $ connected?

Find the matrix representation of a linear map

Dimension of homology of $q$-skeleton

What is the difference in writing $a^{i}_j$ and $a_{i}^j$ for a matrix?

Simple Eigenspace Calculation

How can the external tensor product of irreducible complex representations be irreducible?

Show that this $\mathbb{R}^2$ is an euclidean vector space

Why does the set of integer vectors in the nullspace of $\mathbf{A}$ constitute a lattice?

Prove that $\left\|\lambda\vec{u}+\mu\vec{v}\right\|\leq|\lambda|\cdot\left\|\vec{u}\right\|+|\mu|\cdot\left\|\vec{v}\right\|$

Show that the composition of two reflection is a rotation

arrangement of basis

Prove that $\operatorname{span}(\{x ∈ V: x $ is an eigenvector of $T\}) = E_{λ_1} ⊕ E_{λ_2} ⊕· · ·⊕E_{λ_k}.$

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