CBMS Regional Conference Series in Mathematics 1973; 58 pp; softcover Number: 17 Reprint/Revision History: reprinted with corrections 1976; fifth printing 1992 ISBN10: 0821816675 ISBN13: 9780821816677 List Price: US$18 Member Price: US$14.40 All Individuals: US$14.40 Order Code: CBMS/17
 This volume is the outgrowth of a series of lectures presented at a CBMS Regional Conference held at Texas Tech University in May 1972. In these lectures the author takes up several topics in the theory of linear partial differential equations, beginning with rather elementary, expository material, and going on to some of the current developments and techniques. The lectures are meant for the nonexpert, as an introduction to some of the current questions and ideas. Since the author wished to include some deep results, he has been technical on some occasions, but he has endeavored to describe the necessary background. Reviews "Meant for the nonexpertas an introduction to some of the current questions and ideasand very useful for anyone who is interested in the modern theory of partial differential equations."  Ju. V. Egorov, Mathematical Reviews Table of Contents  Introduction
 Reduction of operators of first order to canonical form
 Pseudodifferential operators and some applications
