Question

Eigenspace of differential operator

score 330 · Answer 1 · 2026-04-09 02:09:33

330

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Eigenspace of differential operator

Published on 09 Apr 2026 - 2:09

score 24 · Answer 2 · 2026-04-15 04:51:27

24

Views

Proving linear dependence of a set of vectors generated from a linearly independent set

Published on 15 Apr 2026 - 4:51

score 65 · Answer 3 · 2026-04-15 17:16:47

65

Views

Finding an orthogonal matrix $P$ of the quadric $3x^2+3z^2-4xy-8xz+4yz=1$

Published on 15 Apr 2026 - 17:16

score 542 · Answer 4 · 2026-04-16 05:17:17

542

Views

OrthoNormal sequence vs OrthoNormal basis

Published on 16 Apr 2026 - 5:17

score 103 · Answer 5 · 2026-04-15 23:17:43

103

Views

$A_{ij}=i-j$, for $i , j = 1, ..., n$. What is the rank of $A$? ($n\geq 2$).

Published on 15 Apr 2026 - 23:17

score 159 · Answer 6 · 2026-04-10 04:46:54

159

Views

Generalized Eigenspace of differential operator

Published on 10 Apr 2026 - 4:46

score 161 · Answer 7 · 2026-04-17 11:21:25

161

Views

What about $W^*$ when $W = \{(x_1, ..., x_n)| x_1+...+x_n=0\}$?

Published on 17 Apr 2026 - 11:21

score 80 · Answer 8 · 2026-04-14 02:28:20

80

Views

Prove that if $A$ is antisymmetrical and $n$ is odd, then it is not invertible.

Published on 14 Apr 2026 - 2:28

score 64 · Answer 9 · 2026-04-14 22:16:09

64

Views

How to find a line that divides a data set with the minimum or maximum variance

Published on 14 Apr 2026 - 22:16

score 179 · Answer 10 · 2026-04-17 13:27:39

179

Views

Determinant of a $2k\times 2k$ matrix with zero diagonal and $+1$ and $-1$ off the diagonal entries

Published on 17 Apr 2026 - 13:27

score 60 · Answer 11 · 2026-04-10 18:59:10

60

Views

What is the rank of this operator?

Published on 10 Apr 2026 - 18:59

score 833 · Answer 12 · 2026-04-15 13:16:33

833

Views

$AB + BA = A \implies A$ and $B$ have a common eigenvector

Published on 15 Apr 2026 - 13:16

score 210 · Answer 13 · 2026-04-29 04:30:33

210

Views

Prove that characteristic polynomial = minimal polynomial

Published on 29 Apr 2026 - 4:30

score 38 · Answer 14 · 2026-04-17 00:30:13

38

Views

dimension of $\mathbb{M}_n(\mathbb{K})$

Published on 17 Apr 2026 - 0:30

score 882 · Answer 15 · 2026-04-18 03:02:56

882

Views

Prove range$(A)$ is the space spanned by the columns of $A$

Published on 18 Apr 2026 - 3:02

List Question

Eigenspace of differential operator

Proving linear dependence of a set of vectors generated from a linearly independent set

Finding an orthogonal matrix $P$ of the quadric $3x^2+3z^2-4xy-8xz+4yz=1$

OrthoNormal sequence vs OrthoNormal basis

$A_{ij}=i-j$, for $i , j = 1, ..., n$. What is the rank of $A$? ($n\geq 2$).

Generalized Eigenspace of differential operator

What about $W^*$ when $W = \{(x_1, ..., x_n)| x_1+...+x_n=0\}$?

Prove that if $A$ is antisymmetrical and $n$ is odd, then it is not invertible.

How to find a line that divides a data set with the minimum or maximum variance

Determinant of a $2k\times 2k$ matrix with zero diagonal and $+1$ and $-1$ off the diagonal entries

What is the rank of this operator?

$AB + BA = A \implies A$ and $B$ have a common eigenvector

Prove that characteristic polynomial = minimal polynomial

dimension of $\mathbb{M}_n(\mathbb{K})$

Prove range$(A)$ is the space spanned by the columns of $A$

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