New posts in Lagrangian Formalism

Hamiltonian of non-regular Lagrangian is well-defined on phase space

Normalization of the action in Special Relativity

Noether's current for dilation transformation

Is there a Lagrangian action that leads to gradient descent?

Principle of stationary action vs Euler-Lagrange Equation

Euler-Lagrange equation in curved spacetime: how to calculate $\partial \mathcal{L}/\partial(\nabla_\nu A_\mu)$?

Undefined Hamiltonian for this particular Lagrangian

Are Lagrange's equations physical laws?

Noether's theorem for arbitrary conformal coordinate transformations

Why don't we add Wilson loops to the SM Lagrangian?