List questions from calculus-of-variations

Published on 27 Oct 2018 - 20:56

380

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Variation of Lagrangian with infinitesimal transformation of time and position variables

Published on 25 Mar 2026 - 18:49

51

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Imposing a given constrain (f(x,y)>0) in a variational problem

Published on 25 Mar 2026 - 3:00

84

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Positive Hausdorff measure and $L^{2}$ convergence.

Published on 25 Mar 2026 - 9:26

314

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Integration by parts in the time derivative of a functional

Published on 02 Nov 2018 - 22:35

31

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Noether on symmetry of a Weierstrass representation

Published on 25 Mar 2026 - 3:07

870

Views

What's up with the cycloid-shaped pot in Melville's Moby Dick?

Published on 25 Mar 2026 - 21:37

45

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Is there any current method of distinguishing a local and a global extrema?

Published on 06 Nov 2018 - 9:46

852

Views

Why is the variation of a derivative the same as the derivative of the variation?

Published on 07 Nov 2018 - 18:14

160

Views

Which shape does an elastic rod take as its ends are getting closer?

Published on 08 Nov 2018 - 12:27

151

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Euler Lagrange equation for finding extremal value for $\int_0^1 xw'(x)dx$ given $w(0)=0,w(1)=10$

Published on 11 Nov 2018 - 6:38

439

Views

Maximizing perimeter to area ratio of a function

Published on 11 Nov 2018 - 21:04

358

Views

Is there a name for the minimal surface connecting two straight line segments in 3-dim Euclidean space?

Published on 26 Mar 2026 - 6:21

90

Views

Let $X=\{u\in C^1[0,1]|u(0)=0\}$ and let $I:X\to\mathbb{R}$ be defined as $I(u)=\int_0^1 (u'^2-u^2)$. Which of the following is correct?

Published on 15 Nov 2018 - 9:28

77

Views

Periodic motion on a torus and Lyusternik-Fet Theorem

Published on 25 Mar 2026 - 21:48

List Question

Weak relative minimum

Variation of Lagrangian with infinitesimal transformation of time and position variables

Imposing a given constrain (f(x,y)>0) in a variational problem

Positive Hausdorff measure and $L^{2}$ convergence.

Integration by parts in the time derivative of a functional

Noether on symmetry of a Weierstrass representation

What's up with the cycloid-shaped pot in Melville's Moby Dick?

Is there any current method of distinguishing a local and a global extrema?

Why is the variation of a derivative the same as the derivative of the variation?

Which shape does an elastic rod take as its ends are getting closer?

Euler Lagrange equation for finding extremal value for $\int_0^1 xw'(x)dx$ given $w(0)=0,w(1)=10$

Maximizing perimeter to area ratio of a function

Is there a name for the minimal surface connecting two straight line segments in 3-dim Euclidean space?

Let $X=\{u\in C^1[0,1]|u(0)=0\}$ and let $I:X\to\mathbb{R}$ be defined as $I(u)=\int_0^1 (u'^2-u^2)$. Which of the following is correct?

Periodic motion on a torus and Lyusternik-Fet Theorem

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