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

This book provides a comprehensive introduction to modern global variational theory on fibred spaces. It is based on differentiation and integration theory of d

The book provides a comprehensive theory of ODE which come as Euler-Lagrange equations from generally higher-order Lagrangians. Emphasis is laid on applying met

In this volume are collected notes of lectures delivered at the First In ternational Research Institute of the Mathematical Society of Japan. This conference, h

A minimal length curve joining two points in a surface is called a geodesic. One may trace the origin of the problem of finding geodesics back to the birth of c