Introduction To The Calculus Of Variations

Book Preface

The present monograph is a translation of Introduction au calcul des variations that was published by Presses Polytechniques et Universitaires Romandes. In fact it is more than a translation, it can be considered as a new edition. Indeed, I have substantially modified many proofs and exercises, with their corrections, adding also several new ones. In doing so I have benefited from many comments of students and colleagues who used the French version in their courses on the calculus of variations.