Cauchy Problem for Differential Operators with Double Characteristics

Combining geometrical and microlocal tools, this monograph gives detailed proofs of many well/ill-posed results related to the Cauchy problem for differential operators with non-effectively hyperbolic double characteristics. Previously scattered over numero

  • PDF / 2,552,474 Bytes
  • 215 Pages / 439.42 x 666.14 pts Page_size
  • 117 Downloads / 292 Views

DOWNLOAD

REPORT


Tatsuo Nishitani

Cauchy Problem for Differential Operators with Double Characteristics Non-Effectively Hyperbolic Characteristics

Lecture Notes in Mathematics Editors-in-Chief: Jean-Michel Morel, Cachan Bernard Teissier, Paris Advisory Board: Michel Brion, Grenoble Camillo De Lellis, Zurich Alessio Figalli, Zurich Davar Khoshnevisan, Salt Lake City Ioannis Kontoyiannis, Athens Gábor Lugosi, Barcelona Mark Podolskij, Aarhus Sylvia Serfaty, New York Anna Wienhard, Heidelberg

2202

More information about this series at http://www.springer.com/series/304

Tatsuo Nishitani

Cauchy Problem for Differential Operators with Double Characteristics Non-Effectively Hyperbolic Characteristics

123

Tatsuo Nishitani Department of Mathematics Osaka University Toyonaka, Osaka Japan

ISSN 0075-8434 Lecture Notes in Mathematics ISBN 978-3-319-67611-1 DOI 10.1007/978-3-319-67612-8

ISSN 1617-9692 (electronic) ISBN 978-3-319-67612-8 (eBook)

Library of Congress Control Number: 2017954399 Mathematics Subject Classification (2010): 35L15, 35L30, 35B30, 35S05, 34M40 © Springer International Publishing AG 2017 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Printed on acid-free paper This Springer imprint is published by Springer Nature The registered company is Springer International Publishing AG The registered company address is: Gewerbestrasse 11, 6330 Cham, Switzerland

Preface

In the early 1970s, V.Ja. Ivrii and V.M. Petkov introduced the fundamental matrix Fp , which is now called the Hamilton map, at double characteristic points of the principal symbol p of a differential operator P and proved that if the Cauchy problem for P is C1 well-posed for any lower order term then at every double characteristic point Fp has non-zero real eigenvalues; such characteristic is now called effectively hyperbolic. If no real eigenvalue exist, that is non-effectively hyperbolic, they p