Partial differential equations

The importance of partial differential equations among the topics of appliedmathematics bas been recognized for many years. However, the increasingcomplexity of today's technology is demanding of the mathematician, the engineer,and the scientist an understanding of the subject previously attained only byspecialists. This book is intended to serve as a supplemental or primary text for acourse aimed at providing this understanding. It has been organized so as toprovide a helpful reference for the practicing professional, as well.