Lagrangian vs Eulerian Description
73045
Transitioning between Lagrangian and Eulerian fluid variables
4989
Why are there only derivatives to the first order in the Lagrangian?
13644
Is the change in the Lagrangian always a total derivative for symmetry transformations of the action?
80486
Integrable vs. Non-Integrable systems
109187
The differences between Lagrange and Leibniz's derivative notations
126390
Covariance of Euler-Lagrange equations under change of generalized coordinates
40355
Equivalence between Hamiltonian and Lagrangian Mechanics
96880
How to obtain Hamiltonian formalism and phase space for Lagrangian with second-derivatives?
84964
Euler method for SIR model
35509
Noether's Theorem: Lie groups vs. Lie algebras; finite vs. infinitesimal symmetries
114672
Why do we use the Lagrangian and Hamiltonian instead of other related functions?
77338
Lagrangian interpolation: degree of the interpolation polynomial
1246
Differences between derivatives and strong derivatives
44595
Derivation of Newton-Euler equations
68906
Do the same equations of motion imply the same Lagrangians?
7555
Why do we consider Lagrangian densities in field theory (as opposed to Lagrangians as in point mechanics)?
25779
Constants of motion vs. integrals of motion vs. first integrals