This is an introduction to advanced analysis that supports a modern
presentation with concrete examples and applications, in particular in
the areas of calculus of variations and partial differential equations.
The book aims to impart a working knowledge of the key methods of
contemporary analysis, in particular those that are also relevant for
application in physics. It provides a streamlined introduction to the
fundamental concepts of Banach space and Lebesgue integration theory and
the basic notions of the calculus of variations, including Sobolev space
theory. The expanded third edition contains all-new material on cover
theorems, and added material on properties of various classes of weakly
differential functions.