Question

$v(x)\cdot \nabla_y \delta(x-y)\rightarrow \nabla_y\cdot\ v(y)\delta(x-y)$ Justification

score 78 · Answer 1 · 2026-03-25 01:40:05

78

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$v(x)\cdot \nabla_y \delta(x-y)\rightarrow \nabla_y\cdot\ v(y)\delta(x-y)$ Justification

Published on 25 Mar 2026 - 1:40

score 48 · Answer 2 · 2018-03-14 17:15:59

48

Views

Does $f'(a)>0$ when $a<b$ imply that $f(a+b)>f(a) \impliedby a+b<c $

Published on 14 Mar 2018 - 17:15

score 56 · Answer 3 · 2026-04-13 07:16:36

56

Views

Finding $f$ from $f$'s derivative

Published on 13 Apr 2026 - 7:16

score 2.2k · Answer 4 · 2026-04-11 00:33:44

2.2k

Views

Fourier series of the inverse of a function

Published on 11 Apr 2026 - 0:33

score 1.3k · Answer 5 · 2026-03-25 16:03:36

1.3k

Views

Find the smallest value of positive constant $m$ such that curve will never lie below $x$-axis?

Published on 25 Mar 2026 - 16:03

score 126 · Answer 6 · 2026-04-11 04:14:46

126

Views

Why is the slope function not differentiable?

Published on 11 Apr 2026 - 4:14

score 140 · Answer 7 · 2026-04-12 17:31:38

140

Views

A very basic question about the derivative of a quotient

Published on 12 Apr 2026 - 17:31

score 85 · Answer 8 · 2026-03-25 08:10:46

85

Views

$\frac{dx}{u}=\frac{dt}{1}=\frac{du}{0}\iff\frac{u}{dx}=\frac{1}{dt}=\frac{0}{du}$?

Published on 25 Mar 2026 - 8:10

score 264 · Answer 9 · 2026-04-09 04:33:07

264

Views

Derivative of $(Ax) \otimes y$ with respect to $x$

Published on 09 Apr 2026 - 4:33

score 49 · Answer 10 · 2026-04-12 12:03:19

49

Views

Can we apply u/v rule to dy/dx?

Published on 12 Apr 2026 - 12:03

score 84 · Answer 11 · 2026-04-10 22:31:14

84

Views

What is wrong with this substitution?

Published on 10 Apr 2026 - 22:31

score 38 · Answer 12 · 2026-04-12 12:19:04

38

Views

Positive and Negative tail behaviour of Tracy-Widom distribution.

Published on 12 Apr 2026 - 12:19

score 196 · Answer 13 · 2026-03-25 19:24:56

196

Views

Solve $3x^2+2=0$ for $ x$?

Published on 25 Mar 2026 - 19:24

score 65 · Answer 14 · 2026-04-12 11:47:55

65

Views

Existence of another critical point

Published on 12 Apr 2026 - 11:47

score 31 · Answer 15 · 2026-03-31 06:33:34

31

Views

A confusion in checking differentiability at a point x=1. Cannot find what to write in place of $f(1-h)$ or $f(1+h)$

Published on 31 Mar 2026 - 6:33

List Question

$v(x)\cdot \nabla_y \delta(x-y)\rightarrow \nabla_y\cdot\ v(y)\delta(x-y)$ Justification

Does $f'(a)>0$ when $a<b$ imply that $f(a+b)>f(a) \impliedby a+b<c $

Finding $f$ from $f$'s derivative

Fourier series of the inverse of a function

Find the smallest value of positive constant $m$ such that curve will never lie below $x$-axis?

Why is the slope function not differentiable?

A very basic question about the derivative of a quotient

$\frac{dx}{u}=\frac{dt}{1}=\frac{du}{0}\iff\frac{u}{dx}=\frac{1}{dt}=\frac{0}{du}$?

Derivative of $(Ax) \otimes y$ with respect to $x$

Can we apply u/v rule to dy/dx?

What is wrong with this substitution?

Positive and Negative tail behaviour of Tracy-Widom distribution.

Solve $3x^2+2=0$ for $ x$?

Existence of another critical point

A confusion in checking differentiability at a point x=1. Cannot find what to write in place of $f(1-h)$ or $f(1+h)$

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