Existence and approximation theorems for general differential operators -- General L2 estimates -- Fundamental solutions -- The approximation theorem -- Existen
This is a reader-friendly, relatively short introduction to the modern theory of linear partial differential equations. An effort has been made to present compl
The main change in this edition is the inclusion of exercises with answers and hints. This is meant to emphasize that this volume has been written as a general
Linear Partial Differential and Difference Equations and Simultaneous Systems: With Constant or Homogeneous Coefficients is part of the series "Mathematics and