List questions from calculus-of-variations

Published on 24 Feb 2026 - 0:47

32

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Linear Functionals $\varphi[h]=\lambda\psi[h]$, Variations

Published on 08 Apr 2026 - 16:09

38

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Why is this family of measures tight?

Published on 24 Feb 2026 - 2:07

255

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Maximizing the amount of fish caught

Published on 20 Oct 2020 - 20:20

315

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Proving that a functional J satisfies the Palais Smale condition

Published on 28 Mar 2026 - 6:23

199

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BVP and functional

Published on 09 Apr 2026 - 19:03

134

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finding minimizer of a functional using variations

Published on 08 Apr 2026 - 21:14

87

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Proof that $F$ has a global minimun in $y=u$ where $u(x)=\frac{x-x_0}{x_1-x_0}$

Published on 23 Oct 2020 - 23:28

1.2k

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if $f(x,y,y')$ does not depend on $x$ then the Euler-Lagrange equation becomes in:

Published on 10 Apr 2026 - 18:05

57

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Where to learn more on variational calculus?

Published on 24 Oct 2020 - 23:18

181

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The longest path connecting (0, 0) and (1,1), with $f'(x)\ge0$?

Published on 26 Oct 2020 - 14:12

136

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Are there any simple way to show rigorously that the largest hyper-rectangle inscribed in a hyper-ellipsoid is the one we expect?

Published on 28 Oct 2020 - 11:23

59

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Will the project be completed?

Published on 09 Apr 2026 - 14:00

41

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How is changing the $t$ to a $s$ in $v(t) = \frac{ds}{dt} \implies \frac{dt}{ds} = \frac{1}{v(s)}$ justified?

Published on 29 Oct 2020 - 1:11

166

Views

Phase portrait for time-optimal control problem (controllable region??)

Published on 10 Apr 2026 - 21:13

List Question

Calculus of variations for a Lagrangian functional

Linear Functionals $\varphi[h]=\lambda\psi[h]$, Variations

Why is this family of measures tight?

Maximizing the amount of fish caught

Proving that a functional J satisfies the Palais Smale condition

BVP and functional

finding minimizer of a functional using variations

Proof that $F$ has a global minimun in $y=u$ where $u(x)=\frac{x-x_0}{x_1-x_0}$

if $f(x,y,y')$ does not depend on $x$ then the Euler-Lagrange equation becomes in:

Where to learn more on variational calculus?

The longest path connecting (0, 0) and (1,1), with $f'(x)\ge0$?

Are there any simple way to show rigorously that the largest hyper-rectangle inscribed in a hyper-ellipsoid is the one we expect?

Will the project be completed?

How is changing the $t$ to a $s$ in $v(t) = \frac{ds}{dt} \implies \frac{dt}{ds} = \frac{1}{v(s)}$ justified?

Phase portrait for time-optimal control problem (controllable region??)

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