Lagrangian formalism in electrodynamics
7555
Why do we consider Lagrangian densities in field theory (as opposed to Lagrangians as in point mechanics)?
66939
Picturing the how the covariant derivative acts on vector fields
99590
Can the Lorentz force expression be derived from Maxwell's equations?
88658
Confusion regarding the principle of least action in Landau & Lifshitz "The Classical Theory of Fields"
126388
Derivation of Lorentz Transformations
101002
Is there either a Lagrangian or a Hamiltonian formulation of electromagnetism with continuous distributions of magnetic monopoles?
120474
Does the lagrangian contain all the information about the representations of the fields in QFT?
94173
Deriving the Lagrangian for a free particle
115275
Vector field of charges
83917
How can I prove that the following Lagrangian is Lorentz-invariant iff the axionic field is a pseudoscalar?
112209
Landau's argument for dependence of Lagrangian on magnitude of velocity
89479
Galilean invariance of a subset of Maxwell equations
144664
Acceleration of electric charges and radiation
68906
Do the same equations of motion imply the same Lagrangians?
73144
Virtual photon description of B and E fields
114836
Electric and Magnetic field's phase difference shift in linearly polarized electromagnetic waves
99194
Scale invariance symmetry as a simple argument in an electrostatics problem