Question

Frobenius norm derivative for a quadratic form

score 96 · Answer 1 · 2026-04-11 08:48:32

96

Views

Frobenius norm derivative for a quadratic form

Published on 11 Apr 2026 - 8:48

score 31 · Answer 2 · 2026-04-15 22:53:24

31

Views

Good upper-bound for $\sup_t \|F_t(A)-F_t(B)\|_{op}$ where $F_t(A) := (I-\eta A)^t$ and $\|A-B\|_F \le \epsilon$

Published on 15 Apr 2026 - 22:53

score 108 · Answer 3 · 2026-04-10 17:38:43

108

Views

Does always exist a linear transformation from Vandermonde matrix to another Vandermonde matrix?

Published on 10 Apr 2026 - 17:38

score 59 · Answer 4 · 2026-04-14 23:01:05

59

Views

Derivative of scalar-valued function with kronekcer product: $\log(\operatorname{det}(AA^T \otimes BB^T))$

Published on 14 Apr 2026 - 23:01

score 67 · Answer 5 · 2026-04-16 11:23:37

67

Views

Derivative of Hadamard Product Multiply by Summing Vector (each element is 1)

Published on 16 Apr 2026 - 11:23

score 122 · Answer 6 · 2026-03-26 01:09:27

122

Views

Objective function and constraints are matrix form in an optimization problem, can Lagrange multipliers method be applied to solve?

Published on 26 Mar 2026 - 1:09

score 98 · Answer 7 · 2026-04-15 18:24:37

98

Views

Rigorous calculation of gradient using matrix-calculus

Published on 15 Apr 2026 - 18:24

score 104 · Answer 8 · 2026-04-16 01:15:23

104

Views

If vectors are maxima of $\frac{a^T a}{a^T \Sigma^{-1} a}$, then they are eigenvectors of $\Sigma$.

Published on 16 Apr 2026 - 1:15

score 446 · Answer 9 · 2026-04-10 21:04:46

446

Views

How to show $(Ax)^T = x^T A^T$ for square matrix $A$?

Published on 10 Apr 2026 - 21:04

score 139 · Answer 10 · 2026-04-16 18:09:30

139

Views

Gradient of matrix and Hadamart product

Published on 16 Apr 2026 - 18:09

score 160 · Answer 11 · 2026-04-16 10:28:35

160

Views

Showing $\frac{\partial}{\partial \Phi}\left(\Phi\circ\exp(\varphi)\circ\Phi^{-1}\right) = I - C(\Phi)C(\varphi)C(\Phi)^T$ for 3D rotations

Published on 16 Apr 2026 - 10:28

score 64 · Answer 12 · 2026-04-16 10:59:31

64

Views

Is $\nabla f^{-1}(\mathbf{x})$ the same as $(\nabla f(\mathbf{x}))^{-1}$ for a monotone function $f$?

Published on 16 Apr 2026 - 10:59

score 116 · Answer 13 · 2026-04-13 17:41:35

116

Views

When will $AB$ and $B$ have the same column space?

Published on 13 Apr 2026 - 17:41

score 168 · Answer 14 · 2026-04-11 16:09:30

168

Views

Explicit computation of norm of matrix exponential for a concrete matrix

Published on 11 Apr 2026 - 16:09

score 95 · Answer 15 · 2026-04-10 21:38:18

95

Views

Invertibility of $A-\Delta Id$.

Published on 10 Apr 2026 - 21:38

List Question

Frobenius norm derivative for a quadratic form

Good upper-bound for $\sup_t \|F_t(A)-F_t(B)\|_{op}$ where $F_t(A) := (I-\eta A)^t$ and $\|A-B\|_F \le \epsilon$

Does always exist a linear transformation from Vandermonde matrix to another Vandermonde matrix?

Derivative of scalar-valued function with kronekcer product: $\log(\operatorname{det}(AA^T \otimes BB^T))$

Derivative of Hadamard Product Multiply by Summing Vector (each element is 1)

Objective function and constraints are matrix form in an optimization problem, can Lagrange multipliers method be applied to solve?

Rigorous calculation of gradient using matrix-calculus

If vectors are maxima of $\frac{a^T a}{a^T \Sigma^{-1} a}$, then they are eigenvectors of $\Sigma$.

How to show $(Ax)^T = x^T A^T$ for square matrix $A$?

Gradient of matrix and Hadamart product

Showing $\frac{\partial}{\partial \Phi}\left(\Phi\circ\exp(\varphi)\circ\Phi^{-1}\right) = I - C(\Phi)C(\varphi)C(\Phi)^T$ for 3D rotations

Is $\nabla f^{-1}(\mathbf{x})$ the same as $(\nabla f(\mathbf{x}))^{-1}$ for a monotone function $f$?

When will $AB$ and $B$ have the same column space?

Explicit computation of norm of matrix exponential for a concrete matrix

Invertibility of $A-\Delta Id$.

Trending Questions

Popular # Hahtags

Popular Questions