Hyperbolic Systems with Analytic Coefficients: Well-posedness of the Cauchy Problem by Tatsuo NishitaniHyperbolic Systems with Analytic Coefficients: Well-posedness of the Cauchy Problem by Tatsuo Nishitani

Hyperbolic Systems with Analytic Coefficients: Well-posedness of the Cauchy Problem

byTatsuo Nishitani

Paperback | December 5, 2013

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This monograph focuses on the well-posedness of the Cauchy problem for linear hyperbolic systems with matrix coefficients. Mainly two questions are discussed:
(A) Under which conditions on lower order terms is the Cauchy problem well posed?
(B) When is the Cauchy problem well posed for any lower order term?
For first order two by two systems with two independent variables with real analytic coefficients, we present complete answers for both (A) and (B). For first order systems with real analytic coefficients we prove general necessary conditions for question (B) in terms of minors of the principal symbols. With regard to sufficient conditions for (B), we introduce hyperbolic systems with nondegenerate characteristics, which contain strictly hyperbolic systems, and prove that the Cauchy problem for hyperbolic systems with nondegenerate characteristics is well posed for any lower order term. We also prove that any hyperbolic system which is close to a hyperbolic system with a nondegenerate characteristic of multiple order has a nondegenerate characteristic of the same order nearby.

Title:Hyperbolic Systems with Analytic Coefficients: Well-posedness of the Cauchy ProblemFormat:PaperbackDimensions:237 pagesPublished:December 5, 2013Publisher:Springer-Verlag/Sci-Tech/TradeLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:3319022725

ISBN - 13:9783319022727

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Table of Contents

Introduction.- Necessary conditions for strong hyperbolicity.- Two by two systems with two independent variables.- Systems with nondegenerate characteristics.- Index.