This book deals with key the key topics of Calculus of Variations. Calculus of variations is a field of mathematical analysis that deals with maximizing or minimizing functionals, which are mappings from a set of functions to the real numbers. Functionals are often expressed as definite integrals involving functions and their derivatives.
Chapter 1: Variational Problems with Fixed Boundaries
Chapter 2: Variational Problems with Moving Boundaries
Chapter 3: Sufficient Conditions for an Extremum
Chapter 4: Variational Method for Boundary Value Problems