The Inverse Problem of the Calculus of Variations
Zenkov, Dmitry V.![The Inverse Problem of the Calculus of Variations](https://support.digitalhusky.com/media/annotations/sorted/177/17755658/CHSBZCOP0317755658.jpg)
The aim of the present book is to give a systematic treatment of the inverse problem of the calculus of variations, i.e. how to recognize whether a system of differential equations can be treated as a system for extremals of a variational functional (the Euler-Lagrange equations), using contemporary geometric methods. Selected applications in geometry, physics, optimal control, and general relativity are also considered. The book includes the ...