This book collects 10 mathematical essays on approximation in Analysis and Topology by some of the most influent mathematicians of the last third of the 20th Ce

This textbook is devoted to the study of some simple but representative nonlinear boundary value problems by topological methods. The approach is elementary, wi

The aim of this book is to present various facets of the theory and applications of Lipschitz functions, starting with classical and culminating with some recen

The book is a collection of original papers, research and surveys, dedicated to the memory of the Romanian mathematician Solomon Marcus (1925-2016). Marcus publ

The present volume is dedicated to celebrate the work of the renowned mathematician Herbert Amann, who had a significant and decisive influence in shaping Nonli