Quantum Field Theory and the Standard Model by Schwartz M.D. z-lib.org · Problem 3.1

Classical field theory — Schwartz M.D. z-lib.org

Physics — QFT · euler-lagrange-equations-higher-derivatives

Problem

Find the generalization of the Euler–Lagrange equations for general Lagrangians, of the form

\mathcal{L}[\phi, \partial_\mu\phi, \partial_\nu\partial_\mu\phi, \ldots]