The book is devoted to recent research in the global variational theory on smooth manifolds. Its main objective is an extension of the classical variational cal

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 di

Interpolation Theory • Function Spaces • Differential Operators contains a systematic treatment in the following topics: Interpolation theory in Banach spac

This book collects a series of contributions addressing the various contexts in which the theory of Lie groups is applied. A preliminary chapter serves the read

From its origins in the minimization of integral functionals, the notion of variations has evolved greatly in connection with applications in optimization, equi