Question

The determinant of identity matrix plus the sum of outer products of vectors

score 46 · Answer 1 · 2024-02-06 14:01:07

46

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The determinant of identity matrix plus the sum of outer products of vectors

Published on 06 Feb 2024 - 14:01

score 43 · Answer 2 · 2024-02-10 03:32:50

43

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Determine all possible values of $p$ and $q$ such that $A^2$ is an upper triangular matrix with det$(A^2)=81$

Published on 10 Feb 2024 - 3:32

score 91 · Answer 3 · 2024-02-14 11:45:24

91

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Matrix $A \in \mathbb{R}^{17, 17}$ satisfies condition $A^2 = 0$. Prove that matrix $A + A^T$ is uninvertible (singular) matrix.

Published on 14 Feb 2024 - 11:45

score 66 · Answer 4 · 2026-04-11 05:43:32

66

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Closed form expression for a matrix with elementwise combinatorial sums

Published on 11 Apr 2026 - 5:43

score 90 · Answer 5 · 2026-04-13 05:14:03

90

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Prove this equation with the given determinant

Published on 13 Apr 2026 - 5:14

score 22 · Answer 6 · 2026-04-13 00:26:08

22

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Proof that a specific determinant involving the floor-function is non-zero

Published on 13 Apr 2026 - 0:26

score 70 · Answer 7 · 2024-02-18 12:04:50

70

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Prove that $I-A$ is non singular

Published on 18 Feb 2024 - 12:04

score 55 · Answer 8 · 2026-03-31 18:53:32

55

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Finding the entries in a matrix given that the rank has to be $2$

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score 102 · Answer 9 · 2026-03-29 18:11:58

102

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On checking the convexity of a multivariate function.

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score 38 · Answer 10 · 2026-04-09 21:23:24

38

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score 32 · Answer 11 · 2026-03-26 07:56:53

32

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Simplifying eigenvalue calculation where only one non-zero element is shared by a row and column.

Published on 26 Mar 2026 - 7:56

score 108 · Answer 12 · 2026-04-11 09:38:08

108

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Solve Determinant Equation

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score 68 · Answer 13 · 2026-04-08 02:33:05

68

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I can't seem to understand the proof of the Cauchy-Schwarz inequality

Published on 08 Apr 2026 - 2:33

score 37 · Answer 14 · 2026-04-12 14:46:13

37

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Connections between an identity about minors and Plücker relations

Published on 12 Apr 2026 - 14:46

score 39 · Answer 15 · 2026-04-13 01:54:03

39

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Orthogonal polynomial and determinant

Published on 13 Apr 2026 - 1:54

List Question

The determinant of identity matrix plus the sum of outer products of vectors

Determine all possible values of $p$ and $q$ such that $A^2$ is an upper triangular matrix with det$(A^2)=81$

Matrix $A \in \mathbb{R}^{17, 17}$ satisfies condition $A^2 = 0$. Prove that matrix $A + A^T$ is uninvertible (singular) matrix.

Closed form expression for a matrix with elementwise combinatorial sums

Prove this equation with the given determinant

Proof that a specific determinant involving the floor-function is non-zero

Prove that $I-A$ is non singular

Finding the entries in a matrix given that the rank has to be $2$

On checking the convexity of a multivariate function.

Finding Roots of (Large) Determinants

Simplifying eigenvalue calculation where only one non-zero element is shared by a row and column.

Solve Determinant Equation

I can't seem to understand the proof of the Cauchy-Schwarz inequality

Connections between an identity about minors and Plücker relations

Orthogonal polynomial and determinant

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