Solution of Initial Value Problems in Classes of Generalized Analytic Functions

Tutschke, Wolfgang

ISBN 10: 3540502165 / ISBN 13: 9783540502166

Edité par Springer 1989-03, 1989

A propos de cet article

N° de réf. du vendeur 6666-IUK-9783540502166

Détails bibliographiques

• Titre: Solution of Initial Value Problems in Classes of Generalized Analytic Functions
• Éditeur: Springer 1989-03
• Date de parution: 1989
• Langue: anglais
• ISBN à 10 chiffres: 3540502165
• ISBN à 13 chiffres: 9783540502166
• Reliure: PF
• État de l'article: New

A propos de ce titre

Synopsis

The purpose of the present book is to solve initial value problems in classes of generalized analytic functions as well as to explain the functional-analytic background material in detail. From the point of view of the theory of partial differential equations the book is intend- ed to generalize the classicalCauchy-Kovalevskayatheorem, whereas the functional-analytic background connected with the method of successive approximations and the contraction-mapping principle leads to the con- cept of so-called scales of Banach spaces: 1. The method of successive approximations allows to solve the initial value problem du CTf = f(t, u), (0. 1) u(O) = u, (0. 2) 0 where u = u(t) ist real o. r vector-valued. It is well-known that this method is also applicable if the function u belongs to a Banach space. A completely new situation arises if the right-hand side f(t, u) of the differential equation (0. 1) depends on a certain derivative Du of the sought function, i. e., the differential equation (0,1) is replaced by the more general differential equation du dt = f(t, u, Du), (0. 3) There are diff. erential equations of type (0. 3) with smooth right-hand sides not possessing any solution to say nothing about the solvability of the initial value problem (0,3), (0,2), Assume, for instance, that the unknown function denoted by w is complex-valued and depends not only on the real variable t that can be interpreted as time but also on spacelike variables x and y, Then the differential equation (0.