Question

Quick and elegant explanation of $B^T A B x = 0 \Rightarrow x = 0$ with $A$ symmetric and $\mathcal R(B) = \mathcal R(A)$.

score 105 · Answer 1 · 2026-05-11 03:31:00

105

Views

Quick and elegant explanation of $B^T A B x = 0 \Rightarrow x = 0$ with $A$ symmetric and $\mathcal R(B) = \mathcal R(A)$.

Published on 11 May 2026 - 3:31

score 56 · Answer 2 · 2026-04-14 00:21:51

56

Views

Express the dimensions of the null space and range space of $S$ and $T$ in terms of $\dim V , \dim W$

Published on 14 Apr 2026 - 0:21

score 74 · Answer 3 · 2026-04-11 07:13:42

74

Views

Why contains the direct square of a representation in a 3D point group the trivial representation?

Published on 11 Apr 2026 - 7:13

score 45 · Answer 4 · 2026-05-10 18:19:31

45

Views

Determining whether a matrix is unitary when given its eigenspaces

Published on 10 May 2026 - 18:19

score 333 · Answer 5 · 2026-05-10 14:55:43

333

Views

Lesser Limited Principle Of Omniscience

Published on 10 May 2026 - 14:55

score 97 · Answer 6 · 2026-04-13 07:02:25

97

Views

Nullspace containing whole space

Published on 13 Apr 2026 - 7:02

score 377 · Answer 7 · 2026-05-10 18:55:04

377

Views

Sum of projections. Vector space

Published on 10 May 2026 - 18:55

score 130 · Answer 8 · 2026-04-14 22:16:41

130

Views

Maximum nullity of a linear transformation given that the nullity of T restricted to a subspace is s.

Published on 14 Apr 2026 - 22:16

score 101 · Answer 9 · 2026-05-11 00:33:00

101

Views

Some confusion regarding Jordan block form of a matrix

Published on 11 May 2026 - 0:33

score 205 · Answer 10 · 2026-05-11 03:14:14

205

Views

Equivalence of tensor field definitions

Published on 11 May 2026 - 3:14

score 120 · Answer 11 · 2026-04-14 06:50:53

120

Views

Let $Ax=b$ be a linear system with matrix $A ∈ M_{4×4}$ and $\det(A)=3$

Published on 14 Apr 2026 - 6:50

score 846 · Answer 12 · 2026-05-11 02:18:23

846

Views

Quotient space $\mathbb{F}^\infty/U$ is infinite dimensional

Published on 11 May 2026 - 2:18

score 299 · Answer 13 · 2026-05-10 14:03:28

299

Views

tangent cone and simplex

Published on 10 May 2026 - 14:03

score 45 · Answer 14 · 2026-04-23 11:17:21

45

Views

How to solve a n-dimensional matrix equation involving a matrix and its transpose?

Published on 23 Apr 2026 - 11:17

score 598 · Answer 15 · 2026-04-14 14:35:44

598

Views

Prove that a system of linear equations, will have infinitely many solutions whenever there is a specific value.

Published on 14 Apr 2026 - 14:35

List Question

Quick and elegant explanation of $B^T A B x = 0 \Rightarrow x = 0$ with $A$ symmetric and $\mathcal R(B) = \mathcal R(A)$.

Express the dimensions of the null space and range space of $S$ and $T$ in terms of $\dim V , \dim W$

Why contains the direct square of a representation in a 3D point group the trivial representation?

Determining whether a matrix is unitary when given its eigenspaces

Lesser Limited Principle Of Omniscience

Nullspace containing whole space

Sum of projections. Vector space

Maximum nullity of a linear transformation given that the nullity of T restricted to a subspace is s.

Some confusion regarding Jordan block form of a matrix

Equivalence of tensor field definitions

Let $Ax=b$ be a linear system with matrix $A ∈ M_{4×4}$ and $\det(A)=3$

Quotient space $\mathbb{F}^\infty/U$ is infinite dimensional

tangent cone and simplex

How to solve a n-dimensional matrix equation involving a matrix and its transpose?

Prove that a system of linear equations, will have infinitely many solutions whenever there is a specific value.

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