Question

fix a line for operation on matrices

score 22 · Answer 1 · 2026-04-12 07:12:31

22

Views

fix a line for operation on matrices

Published on 12 Apr 2026 - 7:12

score 1k · Answer 2 · 2026-04-10 01:27:36

1k

Views

Does the trace and determinant uniquely determine the eigenvalues of a 3 by 3 matrix with algebraic multiplicity of 2?

Published on 10 Apr 2026 - 1:27

score 178 · Answer 3 · 2026-04-15 06:23:50

178

Views

Induction proof: $\det(M) = \prod_{1 \le j \le n} (x_j - x_i)$

Published on 15 Apr 2026 - 6:23

score 775 · Answer 4 · 2026-04-12 14:33:10

775

Views

Can we use Sarrus' method for finding the determinant of matrix greater than $3\times3$?

Published on 12 Apr 2026 - 14:33

score 2.2k · Answer 5 · 2026-03-25 08:12:57

2.2k

Views

What is the 3-volume of the 3-parallelepiped defined by $\left\{\vec{v_1},\vec{v_2},\vec{v_3}\right\}$?

Published on 25 Mar 2026 - 8:12

score 740 · Answer 6 · 2026-04-11 17:47:44

740

Views

Is the area of $T(\Omega)=|\det A|\,(\text{area of }\Omega)$?

Published on 11 Apr 2026 - 17:47

score 616 · Answer 7 · 2026-04-10 00:37:00

616

Views

Wedge Product Formula For Sine. Analogous Formula Generalizing Cosine to Higher Dimensions?

Published on 10 Apr 2026 - 0:37

score 217 · Answer 8 · 2026-04-16 02:32:19

217

Views

An Eigen Value of $\tiny \begin{pmatrix} a&b&1 \\ c&d&1 \\ 1&-1&0\\ \end{pmatrix}$ is :

Published on 16 Apr 2026 - 2:32

score 449 · Answer 9 · 2026-04-16 08:30:05

449

Views

Prove: $(\det(A-B)+\det(A+B) )^2 \ge 4\det(A^2-B^2 )$

Published on 16 Apr 2026 - 8:30

score 269 · Answer 10 · 2026-04-16 13:12:33

269

Views

Prove that $\det(AA^T+I)\ge 1$

Published on 16 Apr 2026 - 13:12

score 678 · Answer 11 · 2026-04-15 07:00:18

678

Views

Same roots, same polynomial? How to prove characteristic polynomial of $AB = BA$?

Published on 15 Apr 2026 - 7:00

score 495 · Answer 12 · 2026-04-14 23:39:38

495

Views

Determine the coefficient of polynomial det(I + xA)

Published on 14 Apr 2026 - 23:39

score 68 · Answer 13 · 2026-04-15 11:32:25

68

Views

Compute the character $Ind_{H}^G \mathbb{I}$ by computing the character of $\mathbb{C}[G/H]$

Published on 15 Apr 2026 - 11:32

score 174 · Answer 14 · 2026-04-16 19:18:31

174

Views

The discriminant of (1,x,x^2) in a cubic field.

Published on 16 Apr 2026 - 19:18

score 80 · Answer 15 · 2026-04-14 12:09:12

80

Views

Find determinant value

Published on 14 Apr 2026 - 12:09

List Question

fix a line for operation on matrices

Does the trace and determinant uniquely determine the eigenvalues of a 3 by 3 matrix with algebraic multiplicity of 2?

Induction proof: $\det(M) = \prod_{1 \le j \le n} (x_j - x_i)$

Can we use Sarrus' method for finding the determinant of matrix greater than $3\times3$?

What is the 3-volume of the 3-parallelepiped defined by $\left\{\vec{v_1},\vec{v_2},\vec{v_3}\right\}$?

Is the area of $T(\Omega)=|\det A|\,(\text{area of }\Omega)$?

Wedge Product Formula For Sine. Analogous Formula Generalizing Cosine to Higher Dimensions?

An Eigen Value of $\tiny \begin{pmatrix} a&b&1 \\ c&d&1 \\ 1&-1&0\\ \end{pmatrix}$ is :

Prove: $(\det(A-B)+\det(A+B) )^2 \ge 4\det(A^2-B^2 )$

Prove that $\det(AA^T+I)\ge 1$

Same roots, same polynomial? How to prove characteristic polynomial of $AB = BA$?

Determine the coefficient of polynomial det(I + xA)

Compute the character $Ind_{H}^G \mathbb{I}$ by computing the character of $\mathbb{C}[G/H]$

The discriminant of (1,x,x^2) in a cubic field.

Find determinant value

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