Lagrangian of a free particle, from Landau mechanics page 6
4283
Trouble understanding Landau & Lifshitz writing about Lagrangians and Galilean Relativity
135071
Energy momentum tensor from Noether's theorem
46053
How to find Hamiltonian from this simple Lagrangian? (tricky)
126991
Prerequisites for classical mechanics by Susskind
17588
Can Lagrangian be thought of as a metric?
10953
Elementary argument for conservation laws from symmetries *without* using the Lagrangian formalism
41407
How to derive or justify the expressions of momentum operator and energy operator?
27296
Derivation of Lagrangian of electromagnetic field from Lorentz force
44239
Why the extra term $\frac{1}{2}(\partial_{\rho}A^{\rho})^2$ in the photon Lagrangian?
11358
Eigenvalues of the Lagrangian?
72721
Do an action and its Euler-Lagrange equations have the same symmetries?
36380
Why not use the Lagrangian, instead of the Hamiltonian, in nonrelativistic QM?
154454
Why are $L_4$ and $L_5$ lagrangian points stable?
77245
Angular momentum squared and Hamiltonian?
82135
Lagrangian to Hamiltonian in Quantum Field Theory
96880
How to obtain Hamiltonian formalism and phase space for Lagrangian with second-derivatives?
101786
Proving the Lorentz invariance of the Lorentz invariant phase space element