Question

Understanding the proof that $f\in L^1_{loc} =0 $ a.e if its integral with all test function is 0

score 139 · Answer 1 · 2026-04-13 03:14:56

139

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Understanding the proof that $f\in L^1_{loc} =0 $ a.e if its integral with all test function is 0

Published on 13 Apr 2026 - 3:14

score 195 · Answer 2 · 2026-04-11 19:46:34

195

Views

Constructing a Lagrangian whose Euler-Lagrange equation yields a Poisson bracket

Published on 11 Apr 2026 - 19:46

score 61 · Answer 3 · 2022-06-15 13:25:51

61

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How to find the curve that minimizes distance?

Published on 15 Jun 2022 - 13:25

score 73 · Answer 4 · 2026-04-10 05:58:00

73

Views

Variation of a functional increment second definition supposition

Published on 10 Apr 2026 - 5:58

score 417 · Answer 5 · 2026-04-10 14:10:26

417

Views

Iso-parametric Dido problem in polar coordinates

Published on 10 Apr 2026 - 14:10

score 59 · Answer 6 · 2026-04-10 17:35:17

59

Views

How to show that geodesic in polar coordinates satisfies the great circle equation in cartesian

Published on 10 Apr 2026 - 17:35

score 106 · Answer 7 · 2022-06-23 12:02:46

106

Views

the boundary of a star shaped domain has a subset for which the elements stand at an obtuse angle on the outer normal vector

Published on 23 Jun 2022 - 12:02

score 398 · Answer 8 · 2026-04-11 00:56:06

398

Views

Variational problem equivalent to minimizing the energy functional

Published on 11 Apr 2026 - 0:56

score 124 · Answer 9 · 2026-04-11 18:40:35

124

Views

How to heuristically minimize the area between a line through a fixed point and the coordinate axes.

Published on 11 Apr 2026 - 18:40

score 147 · Answer 10 · 2026-04-12 13:32:32

147

Views

Variational problem with constraint involving a functional

Published on 12 Apr 2026 - 13:32

score 152 · Answer 11 · 2026-04-02 15:54:19

152

Views

Find a single convex closed curve of fixed length in the plane that has the smallest average distance to the origin

Published on 02 Apr 2026 - 15:54

score 15 · Answer 12 · 2026-03-03 21:30:37

15

Views

calculus of variations: does extremum squared give the same solution?

Published on 03 Mar 2026 - 21:30

score 95 · Answer 13 · 2022-07-01 20:00:25

95

Views

Let $f$ be proper convex such that $f \in L_1 (\mu)$ and $\mu$ not give mass to small sets. Then $f$ is differentiable $\mu$-a.e.

Published on 01 Jul 2022 - 20:00

score 44 · Answer 14 · 2026-04-12 01:22:49

44

Views

To show that a functional is not lower semicontinuous

Published on 12 Apr 2026 - 1:22

score 2.4k · Answer 15 · 2026-04-13 02:53:56

2.4k

Views

Brenier theorem on optimal transport

Published on 13 Apr 2026 - 2:53

List Question

Understanding the proof that $f\in L^1_{loc} =0 $ a.e if its integral with all test function is 0

Constructing a Lagrangian whose Euler-Lagrange equation yields a Poisson bracket

How to find the curve that minimizes distance?

Variation of a functional increment second definition supposition

Iso-parametric Dido problem in polar coordinates

How to show that geodesic in polar coordinates satisfies the great circle equation in cartesian

the boundary of a star shaped domain has a subset for which the elements stand at an obtuse angle on the outer normal vector

Variational problem equivalent to minimizing the energy functional

How to heuristically minimize the area between a line through a fixed point and the coordinate axes.

Variational problem with constraint involving a functional

Find a single convex closed curve of fixed length in the plane that has the smallest average distance to the origin

calculus of variations: does extremum squared give the same solution?

Let $f$ be proper convex such that $f \in L_1 (\mu)$ and $\mu$ not give mass to small sets. Then $f$ is differentiable $\mu$-a.e.

To show that a functional is not lower semicontinuous

Brenier theorem on optimal transport

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