FACHGEB The last decade has seen a tremendous development in critical point theory in infinite dimensional spaces and its application to nonlinear boundary valu

This book presents some of the latest research in critical point theory, describing methods and presenting the newest applications. Coverage includes extrema, e

The book provides an introduction to minimax methods in critical point theory and shows their use in existence questions for nonlinear differential equations. A

This is the fourth conference on OC Supersymmetry and Perturbation TheoryOCO (SPT 2002). The proceedings present original results and state-of-the-art reviews o

This Research Note explores existence and multiplicity questions for periodic solutions of first order, non-convex Hamiltonian systems. It introduces a new Mors