Question

Is the sum of two linearly independent lists also linearly independent?

score 1k · Answer 1 · 2018-01-24 02:17:53

1k

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Is the sum of two linearly independent lists also linearly independent?

Published on 24 Jan 2018 - 2:17

score 157 · Answer 2 · 2026-03-24 20:32:05

157

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Prove that linear maps on $x\in\mathbb{R}^n$ are differentiable

Published on 24 Mar 2026 - 20:32

score 20.8k · Answer 3 · 2018-01-24 03:35:38

20.8k

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How to check if the columns of a given vector spans Rn

Published on 24 Jan 2018 - 3:35

score 304 · Answer 4 · 2026-03-23 00:59:42

304

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Reflection matrix in $\Bbb R^2$ (matrix $R$ satisfying $R^2 = 1$)

Published on 23 Mar 2026 - 0:59

score 144 · Answer 5 · 2026-03-22 07:49:40

144

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trace of exterior product of a skew matrix $M$, $\bigwedge^kM$

Published on 22 Mar 2026 - 7:49

score 288 · Answer 6 · 2018-01-24 05:04:15

288

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Is an Operator to the Zeroeth Power the Identity?

Published on 24 Jan 2018 - 5:04

score 79 · Answer 7 · 2018-01-24 06:48:23

79

Views

Real parts of diagonal elements of $(I-U)^{-1}(I+U)$ are zero?

Published on 24 Jan 2018 - 6:48

score 135 · Answer 8 · 2026-03-26 16:10:09

135

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Let $V$ be a vector space of dimension $m\geq 2$ and $T: V\to V$ be a linear transformation such that $T^{n+1}=0$ and $T^{n}\neq 0$

Published on 26 Mar 2026 - 16:10

score 257 · Answer 9 · 2018-01-24 09:53:14

Proof Verification: A subspace $W$ of an n-dimensional vector space $V$ is a finite dimensional vector space of dimension $m\leq n$.

score 1.2k · Answer 10 · 2026-03-20 11:22:15

1.2k

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How the principal submatrix of a PSD matrix could be positive definite?

Published on 20 Mar 2026 - 11:22

score 118 · Answer 11 · 2026-03-26 16:04:54

118

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matrix of a rotation about the origin

Published on 26 Mar 2026 - 16:04

score 21.2k · Answer 12 · 2026-03-25 12:48:36

21.2k

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Why can the determinant be assumed to be 0?

Published on 25 Mar 2026 - 12:48

score 94 · Answer 13 · 2026-03-19 18:02:17

94

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Aribtrary large ratio for eigenvalues of positive definite matrices

Published on 19 Mar 2026 - 18:02

score 301 · Answer 14 · 2026-03-23 06:22:02

301

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Inverse of an Infinite Matrix (with factorials)

Published on 23 Mar 2026 - 6:22

score 6.8k · Answer 15 · 2026-03-22 20:40:08

6.8k

Views

Positive-definiteness of the Schur Complement

Published on 22 Mar 2026 - 20:40

List Question

Is the sum of two linearly independent lists also linearly independent?

Prove that linear maps on $x\in\mathbb{R}^n$ are differentiable

How to check if the columns of a given vector spans Rn

Reflection matrix in $\Bbb R^2$ (matrix $R$ satisfying $R^2 = 1$)

trace of exterior product of a skew matrix $M$, $\bigwedge^kM$

Is an Operator to the Zeroeth Power the Identity?

Real parts of diagonal elements of $(I-U)^{-1}(I+U)$ are zero?

Let $V$ be a vector space of dimension $m\geq 2$ and $T: V\to V$ be a linear transformation such that $T^{n+1}=0$ and $T^{n}\neq 0$

Proof Verification: A subspace $W$ of an n-dimensional vector space $V$ is a finite dimensional vector space of dimension $m\leq n$.

How the principal submatrix of a PSD matrix could be positive definite?

matrix of a rotation about the origin

Why can the determinant be assumed to be 0?

Aribtrary large ratio for eigenvalues of positive definite matrices

Inverse of an Infinite Matrix (with factorials)

Positive-definiteness of the Schur Complement

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