Morse theory and variational problems
Abstract formulation and examples
Background material
Critical point theory
p-Linear eigenvalue problems
Existence theory
Monotonicity and uniqueness
Jumping nonlinearities and the dancer-Fučík spectrum
Indefinite eigenvalue problems
Anisotropic systems.
Morse theoretic aspects of p-Laplacian type operators by Kanishka Perera. ISBN 9780821849682. Published by American Mathematical Society in 2010. Publication and catalogue information, links to buy online and reader comments.