Deriving Euler-Lagrange for Electrodynamics Lagrangian
42392
Derivation of Maxwell's equations from field tensor lagrangian
44595
Derivation of Newton-Euler equations
77253
Proof of Lagrange Identity
125565
Counting the number of propagating degrees of freedom in Lorenz Gauge Electrodynamics
48930
Least-action classical electrodynamics without potentials
45167
Deriving the speed of the propagation of a change in the Electromagnetic Field from Maxwell's Equations
120474
Does the lagrangian contain all the information about the representations of the fields in QFT?
98358
A variational problem with a lagrangian , what is the lagrangian?
63402
Euler-Lagrange equation in curved spacetime: how to calculate $\partial \mathcal{L}/\partial(\nabla_\nu A_\mu)$?
38538
Euler's equations of rigid body motion from least action principle
152177
Griffiths on Averaging and the Macroscopic Electric Field
120125
Erratum in Griffith's Introduction to Electrodynamics
36680
What is a good reference for rigorous Electromagnetism and Electrodynamics?
135071
Energy momentum tensor from Noether's theorem
94173
Deriving the Lagrangian for a free particle
112209
Landau's argument for dependence of Lagrangian on magnitude of velocity
153288
Deriving electric field