The first part of a self-contained, elementary textbook, combining linear functional analysis, nonlinear functional analysis, numerical functional analysis, and

Applied Functional Analysis, Third Edition provides a solid mathematical foundation for the subject. It motivates students to study functional analysis by provi

In preparing the second edition, I have taken advantage of the opportunity to correct errors as well as revise the presentation in many places. New material has

A novel, practical introduction to functional analysis In the twenty years since the first edition of Applied Functional Analysis was published, there has been