Question

derivative of the trace of a quantity involving Kronecker product.

score 191 · Answer 1 · 2026-04-28 01:55:26

191

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derivative of the trace of a quantity involving Kronecker product.

Published on 28 Apr 2026 - 1:55

score 521 · Answer 2 · 2026-04-16 02:29:45

521

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Find all differentiable functions which satisfy following property:

Published on 16 Apr 2026 - 2:29

score 186 · Answer 3 · 2026-04-16 10:46:20

186

Views

Tangent subspace and tangent plane

Published on 16 Apr 2026 - 10:46

score 70 · Answer 4 · 2026-04-09 04:12:46

70

Views

Example on function g that is not even and where the derivative fulfill g^(2n-1)(0)=0

Published on 09 Apr 2026 - 4:12

score 125 · Answer 5 · 2026-04-23 13:50:42

125

Views

Question about Spivaks Inverse function theorem proof

Published on 23 Apr 2026 - 13:50

score 3.7k · Answer 6 · 2026-04-15 00:59:45

3.7k

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Derivative of the trace of the product of a matrix and its transpose

Published on 15 Apr 2026 - 0:59

score 96 · Answer 7 · 2026-03-25 09:31:24

96

Views

Problem involving parametric differentiation, chain rule and proportionality:

Published on 25 Mar 2026 - 9:31

score 60 · Answer 8 · 2026-04-13 00:08:10

60

Views

Does continous extendability of a derivative to the boundary of a half-space imply differentiability?

Published on 13 Apr 2026 - 0:08

score 60 · Answer 9 · 2026-04-14 22:03:35

60

Views

Determining differentiability of $h(x)= [\sin^3 x ]+\{\sin^{1/3}x\}$

Published on 14 Apr 2026 - 22:03

score 32 · Answer 10 · 2026-04-14 23:38:17

32

Views

Prove there exists an extension $F(x)$ of $f(x)$ in $1$, where at least $F(x)\in C^2((0,+\infty))$

Published on 14 Apr 2026 - 23:38

score 46 · Answer 11 · 2026-04-17 00:44:58

46

Views

Smoothness of a bounded support function

Published on 17 Apr 2026 - 0:44

score 151 · Answer 12 · 2026-04-15 18:49:05

151

Views

If $f$ is two times differentiable on $[a,b]$ and attains maximum at $x_0\in (a,b)$, prove $f''(x_0)\leq 0$.

Published on 15 Apr 2026 - 18:49

score 477 · Answer 13 · 2026-04-12 19:18:10

477

Views

product rule constants

Published on 12 Apr 2026 - 19:18

score 70 · Answer 14 · 2026-04-15 20:32:55

70

Views

For which $x\in \mathbb{R},$ the series $\sum_{n=1}^\infty\frac{\cos^{2n}x} n$ is differentiable?

Published on 15 Apr 2026 - 20:32

score 246 · Answer 15 · 2026-04-25 12:19:47

246

Views

measurable function that has non measurable derivative

Published on 25 Apr 2026 - 12:19

List Question

derivative of the trace of a quantity involving Kronecker product.

Find all differentiable functions which satisfy following property:

Tangent subspace and tangent plane

Example on function g that is not even and where the derivative fulfill g^(2n-1)(0)=0

Question about Spivaks Inverse function theorem proof

Derivative of the trace of the product of a matrix and its transpose

Problem involving parametric differentiation, chain rule and proportionality:

Does continous extendability of a derivative to the boundary of a half-space imply differentiability?

Determining differentiability of $h(x)= [\sin^3 x ]+\{\sin^{1/3}x\}$

Prove there exists an extension $F(x)$ of $f(x)$ in $1$, where at least $F(x)\in C^2((0,+\infty))$

Smoothness of a bounded support function

If $f$ is two times differentiable on $[a,b]$ and attains maximum at $x_0\in (a,b)$, prove $f''(x_0)\leq 0$.

product rule constants

For which $x\in \mathbb{R},$ the series $\sum_{n=1}^\infty\frac{\cos^{2n}x} n$ is differentiable?

measurable function that has non measurable derivative

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