This book is developed for the study of vectorial problems in the calculus ofvariations. The subject is a very active one and almost half of the bookconsists of... » 

This book is developed for the study of vectorial problems in the calculus ofvariations. The subject is a very active one and almost half of the bookconsists of new material. This is a new edition of the earlier book publishedin 1989 and it is suitable for graduate students. The book has been updatedwith some new material and examples added. Applications are included. «