Bibliothèque de L'IMIST/CNRST

Includes bibliographical references (pages 131-134) and index.

Preface.-Introduction.-Critical Points Via Minimization.-The Deformation Theorem.-The Mountain-Pass Theorem.-The Saddle-Point Theorem.-Critical Points under Constraints.-A Duality Principle.-Critical Points under Symmetries.-Problems with an S1-Symmetry.-Problems with Lack of Compactness.-Lack of Compactness for Bounded Omega.-Index.

"This book is a short introductory text to variational techniques with applications to differential equations. It presents a sampling of topics in critical point theory with applications to existence and multiplicity of solutions in nonlinear problems involving ordinary differential equations (ODEs) and partial differential equations (PDEs)." "The concise, straightforward, user-friendly approach of this textbook will appeal to graduate students and researchers interested in differential equations, analysis, and functional analysis."--Jacket.