Titlebook: Lectures on Classical and Quantum Theory of Fields; Henryk Arod?,Leszek Hadasz Textbook 20101st edition Springer-Verlag Berlin Heidelberg

宏偉

,The Euler–Lagrange Equations and Noether’s Theorem,Stationary action principle and the general form of the Euler–Lagrange equations. Notion of symmetry in classical field theory. Noether’s conserved currents.