Question

Proof of $AB=BA=O_n$ when $\ A^2+AB+B^2 = 2BA$

score 81 · Answer 1 · 2018-03-03 18:10:30

81

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Proof of $AB=BA=O_n$ when $\ A^2+AB+B^2 = 2BA$

Published on 03 Mar 2018 - 18:10

score 30 · Answer 2 · 2026-03-26 18:50:35

30

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Construct a block matrix whose inverse will give the product of two matrices

Published on 26 Mar 2026 - 18:50

score 141 · Answer 3 · 2026-04-01 00:29:46

141

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Contest Math Linear Algebra problem

Published on 01 Apr 2026 - 0:29

score 82 · Answer 4 · 2018-03-03 18:55:54

82

Views

Showing an inequality, which relates the equations $A^TAx = A^Tb$ and $A^TA\hat{x} = A^Tb + c$ with $\|\ c \|_2 < \epsilon$

Published on 03 Mar 2018 - 18:55

score 61 · Answer 5 · 2018-03-03 19:08:11

61

Views

Question about nilpotent operators finite and an infinite counterexample

Published on 03 Mar 2018 - 19:08

score 301 · Answer 6 · 2026-03-26 05:57:07

301

Views

If for any $k$, $\sum\limits_{n=0}^\infty a_n^k=\sum\limits_{n=0}^\infty b_n^k$, then$(a_n)=(b_{σ(n)}),\ σ \in{\mathfrak S}_{\mathbb N}$

Published on 26 Mar 2026 - 5:57

score 27 · Answer 7 · 2026-03-27 17:52:22

27

Views

How to prove linear independence of vectors given linear independence of their mapping?

Published on 27 Mar 2026 - 17:52

score 46 · Answer 8 · 2018-03-03 19:35:12

46

Views

Subspaces of Vector Spaces (need some guidance)

Published on 03 Mar 2018 - 19:35

score 233 · Answer 9 · 2018-03-03 19:57:38

233

Views

How we can apply the permutation matrix?

Published on 03 Mar 2018 - 19:57

score 56 · Answer 10 · 2026-04-01 09:55:25

56

Views

Solving an ODE in optimal control

Published on 01 Apr 2026 - 9:55

score 702 · Answer 11 · 2026-03-23 08:30:26

702

Views

Definition of k-plane as linear subspace of dim. k?

Published on 23 Mar 2026 - 8:30

score 582 · Answer 12 · 2026-03-25 09:32:40

582

Views

Non-negative linear least squares with sparse solution vector

Published on 25 Mar 2026 - 9:32

score 179 · Answer 13 · 2026-03-24 22:07:47

179

Views

Proof that even if you change the vector spaces of a transformation, the rank remains the same.

Published on 24 Mar 2026 - 22:07

score 877 · Answer 14 · 2026-03-26 09:18:04

877

Views

Show that a subset in V is linearly independent if and only if the set of coordinate vectors is linearly independent

Published on 26 Mar 2026 - 9:18

score 57 · Answer 15 · 2026-03-25 03:01:40

57

Views

What does mathematically and logically represents the variable $\epsilon_i$ in linear regression formula $y = b_1*x + b_0 + \epsilon$?

Published on 25 Mar 2026 - 3:01

List Question

Proof of $AB=BA=O_n$ when $\ A^2+AB+B^2 = 2BA$

Construct a block matrix whose inverse will give the product of two matrices

Contest Math Linear Algebra problem

Showing an inequality, which relates the equations $A^TAx = A^Tb$ and $A^TA\hat{x} = A^Tb + c$ with $\|\ c \|_2 < \epsilon$

Question about nilpotent operators finite and an infinite counterexample

If for any $k$, $\sum\limits_{n=0}^\infty a_n^k=\sum\limits_{n=0}^\infty b_n^k$, then$(a_n)=(b_{σ(n)}),\ σ \in{\mathfrak S}_{\mathbb N}$

How to prove linear independence of vectors given linear independence of their mapping?

Subspaces of Vector Spaces (need some guidance)

How we can apply the permutation matrix?

Solving an ODE in optimal control

Definition of k-plane as linear subspace of dim. k?

Non-negative linear least squares with sparse solution vector

Proof that even if you change the vector spaces of a transformation, the rank remains the same.

Show that a subset in V is linearly independent if and only if the set of coordinate vectors is linearly independent

What does mathematically and logically represents the variable $\epsilon_i$ in linear regression formula $y = b_1*x + b_0 + \epsilon$?

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