Covers recent advances in the field of nonlinear functional analysis and its applications to nonlinear pdes and odes, with particular emphasis on variational and topological methods. Topics covered include: * concentration phenomena in pdes, * variational methods with applications to pdes and physics, * periodic solutions of odes, * computational aspects in topological methods * mathematical models in biology. Unique to the work are several chapters on computational aspects and applications to biology. Excellent reference text for researchers and graduate students in nonlinear analysis.