This is a textbook for an introductory graduate course on partial differential equations. Han focuses on linear equations of first and second order. An importan

Methods of solution for partial differential equations (PDEs) used in mathematics, science, and engineering are clarified in this self-contained source. The rea

Partial differential equations are fundamental to the modeling of natural phenomena, arising in every field of science. Consequently, the desire to understand t

This text explores the essentials of partial differential equations as applied to engineering and the physical sciences. Discusses ordinary differential equatio

Does entropy really increase no matter what we do? Can light pass through a Big Bang? What is certain about the Heisenberg uncertainty principle? Many laws of p