variational problem: obtain the lagrangian from the PDE equations of motion
98358
A variational problem with a lagrangian , what is the lagrangian?
64228
D'Alemberts Principle to solve a Classical Mechanics problem
142436
Solving a PDE with variable coefficients
129940
How to obtain the distance traversed by a free falling body equation?
114172
Derivation of Hamilton-Jacobi theory using canonical transformations
18054
Is there a proof from the first principle that the Lagrangian L = T - V?
114562
Boundary conditions for calculus of variations in phase space and under canonical transformations
37337
Minimizing a functional with a free boundary condition
6937
General solution to the PDE $xU_x+yU_y=0$
86504
Hamilton's principle with semiholonomic constraints in Goldstein
153727
Constant term in Lagrangian
77338
Lagrangian interpolation: degree of the interpolation polynomial
10785
Form of the Classical EM Lagrangian
117990
Derivation of the method of Lagrange multipliers?
93848
Proving energy conservation for wave equation
27296
Derivation of Lagrangian of electromagnetic field from Lorentz force
126390
Covariance of Euler-Lagrange equations under change of generalized coordinates