Electronic Journal of Differential Equations,
Monograph 07, 2006, (213 pages).

Title: Existence, multiplicity, perturbation, and concentration results
       for a class of quasi-linear elliptic problems
       
Author: Marco Squassina (Univ. degli Studi di Milano-Bicocca, Italy)

Abstract: 
 The aim of this monograph is to present a comprehensive survey of
 results about existence, multiplicity, perturbation from symmetry
 and concentration phenomena for a class of quasi-linear elliptic equations
 coming from functionals of the calculus of variations which turn out to be
 merely continuous. Some tools of non-smooth critical point theory
 will be employed.
 
Submitted September 12, 2005. Published February 16, 2006.
Math Subject Classifications: 35J20, 35J25, 49J52, 58E35, 74G35.
Key Words: Critical points; non-smooth functionals; weak slope;
           deformation theorem; invariant functionals, 
	   mountain pass theorem;relative category.