List questions from euler-lagrange-equation

Published on 03 Apr 2021 - 22:06

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Solution for $F = \int^{b}_{a}{f(y'(x)) dx} \mbox{ min }$ with $\frac{d }{dp}f(p) = 0$ for $f(x,z,p) = f(p)$ and $f$ is convex.

Published on 24 Feb 2026 - 2:15

176

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Existence of a global or local minimizer of $F(u) = \int^{b}_{a}{u'(x)^2 + \arctan(u(x)) dx}$

Published on 24 Feb 2026 - 2:15

728

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How do you go from an ODE to a Lagrangian?

Published on 13 Apr 2021 - 20:04

42

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What is $\frac{d}{dx}(4\dot{y}^3)$

Published on 19 Apr 2021 - 11:50

292

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Equations of motion with Euler-Lagrange equations

Published on 20 Apr 2021 - 13:17

75

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Writing Euler's equation for this minimization problem.

Published on 21 Apr 2021 - 8:44

248

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Calculate the Poisson bracket {A, H}, and check if there is a value of c for which A is a constant of motion?

Published on 25 Mar 2026 - 18:59

193

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Taylor expansion of Lagrangian $L = \frac{1}{2} \dot{q} \cdot A(q) \dot{q}-V(q,\dot{q})$

Published on 26 Mar 2026 - 11:01

182

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Finding a Hamiltonian function with or without Lagrangian

Published on 25 Mar 2026 - 18:52

55

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shortest distance inside a region

Published on 24 May 2021 - 10:15

52

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Gelfand “Calculus of Variation” 2.10 Equation 16

Published on 28 May 2021 - 22:06

151

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Euler-Lagrange equations gives trivial solution

Published on 31 May 2021 - 9:57

88

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How to compute the Hamiltonian easily

Published on 25 Mar 2026 - 18:53

74

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Get parabola equation given two points and the path length

Published on 02 Jun 2021 - 15:28

List Question

System of ODE and Euler-Lagrange equation

Solution for $F = \int^{b}_{a}{f(y'(x)) dx} \mbox{ min }$ with $\frac{d }{dp}f(p) = 0$ for $f(x,z,p) = f(p)$ and $f$ is convex.

Existence of a global or local minimizer of $F(u) = \int^{b}_{a}{u'(x)^2 + \arctan(u(x)) dx}$

How do you go from an ODE to a Lagrangian?

What is $\frac{d}{dx}(4\dot{y}^3)$

Equations of motion with Euler-Lagrange equations

Writing Euler's equation for this minimization problem.

Calculate the Poisson bracket {A, H}, and check if there is a value of c for which A is a constant of motion?

Taylor expansion of Lagrangian $L = \frac{1}{2} \dot{q} \cdot A(q) \dot{q}-V(q,\dot{q})$

Finding a Hamiltonian function with or without Lagrangian

shortest distance inside a region

Gelfand “Calculus of Variation” 2.10 Equation 16

Euler-Lagrange equations gives trivial solution

How to compute the Hamiltonian easily

Get parabola equation given two points and the path length

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