How to evaluate the Euler-Lagrange equation for the electromagnetic Lagrangian?
63402
Euler-Lagrange equation in curved spacetime: how to calculate $\partial \mathcal{L}/\partial(\nabla_\nu A_\mu)$?
99789
Beyond Hamiltonian and Lagrangian mechanics
99590
Can the Lorentz force expression be derived from Maxwell's equations?
104913
Geodesic for Electromagnetic forces
48930
Least-action classical electrodynamics without potentials
101944
Fundamental invariants of the electromagnetic field
62692
Retrieving Maxwell's equations from the minimum action principle
106021
How wrong are the classical Maxwell's equations (as compared to QED)?
44302
Deriving the Coulomb force equation from the idea of photon exchange?
84964
Euler method for SIR model
125565
Counting the number of propagating degrees of freedom in Lorenz Gauge Electrodynamics
119258
Electromagnetic field and continuous and differentiable vector fields
109438
Finding net magnetic and electric force on charged particle
94173
Deriving the Lagrangian for a free particle
11358
Eigenvalues of the Lagrangian?
129289
What is the origin of the factor of $-1/4$ in the Maxwell Lagrangian?
82166
How are constraint forces represented in Lagrangian mechanics?