Memoirs of the American Mathematical Society 2000; 134 pp; softcover Volume: 146 ISBN10: 0821820664 ISBN13: 9780821820667 List Price: US$53 Individual Members: US$31.80 Institutional Members: US$42.40 Order Code: MEMO/146/694
 Readership Graduate students and researchers interested in the mathematical physics and PDE. Table of Contents  Introduction
 Outline of the proof
 Construction of local semigroups
 Restarting procedures
 Proof of Proposition 2.4
 Proof of Proposition 2.5
 Proof of Proposition 2.7
 Proof of Proposition 2.10
 Proof of Proposition 2.15
 Completion of the proof
 Appendix
 Bibliography
