Lorentz transformation and symmetries of the Lagrangian
18583
What conservation law corresponds to Lorentz boosts?
101944
Fundamental invariants of the electromagnetic field
116314
On-shell and off-shell transformations in Noether's theorem
153903
Symmetry condition for continuous coordinate transformations
120474
Does the lagrangian contain all the information about the representations of the fields in QFT?
116427
$(c^{\mu}\partial_{\mu}-m)\phi(x)=0$ not Lorentz-invariant?
17451
Expanding electromagnetic field Lagrangian in terms of gauge field
83917
How can I prove that the following Lagrangian is Lorentz-invariant iff the axionic field is a pseudoscalar?
55540
Electric charge is lorentz invariant
155492
Exercise on local and global symmetry for a given Lagrangian density
13685
How do I derive the Lorentz contraction from the invariant interval?
72721
Do an action and its Euler-Lagrange equations have the same symmetries?
64247
Noether Theorem and Energy conservation in classical mechanics
96880
How to obtain Hamiltonian formalism and phase space for Lagrangian with second-derivatives?
108062
How can we prove charge invariance under Lorentz Transformation?
72169
Galilean invariance of the Schrodinger equation
61070
Lorentz invariance of the integration measure