Viability, Invariance and Applications, Volume 207

1st Edition

Print ISBN: 9780444550781
eBook ISBN: 9780080521664
Imprint: Elsevier Science
Published Date: 4th June 2007
Page Count: 356
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The book is an almost self-contained presentation of the most important concepts and results in viability and invariance. The viability of a set K with respect to a given function (or multi-function) F, defined on it, describes the property that, for each initial data in K, the differential equation (or inclusion) driven by that function or multi-function) to have at least one solution. The invariance of a set K with respect to a function (or multi-function) F, defined on a larger set D, is that property which says that each solution of the differential equation (or inclusion) driven by F and issuing in K remains in K, at least for a short time.

The book includes the most important necessary and sufficient conditions for viability starting with Nagumo’s Viability Theorem for ordinary differential equations with continuous right-hand sides and continuing with the corresponding extensions either to differential inclusions or to semilinear or even fully nonlinear evolution equations, systems and inclusions. In the latter (i.e. multi-valued) cases, the results (based on two completely new tangency concepts), all due to the authors, are original and extend significantly, in several directions, their well-known classical counterparts.

Key Features

  • New concepts for multi-functions as the classical tangent vectors for functions
  • Provides the very general and necessary conditions for viability in the case of differential inclusions, semilinear and fully nonlinear evolution inclusions
  • Clarifying examples, illustrations and numerous problems, completely and carefully solved
  • Illustrates the applications from theory into practice
  • Very clear and elegant style


Primary Markets: Graduate students, specialists and researchers in O.D.E., P.D.E., Differential Inclusions, Optimal Control

Secondary Markets: Physicists, Engineers, Chemists, Economists, Biologists.

Table of Contents

Preface Chapter 1. Generalities Chapter 2. Specific preliminary results

Ordinary differential equations and inclusions Chapter 3. Nagumo type viability theorems Chapter 4. Problems of invariance Chapter 5. Viability under Carathéodory conditions Chapter 6. Viability for differential inclusions Chapter 7. Applications

Part 2 Evolution equations and inclusions Chapter 8. Viability for single-valued semilinear evolutions Chapter 9. Viability for multi-valued semilinear evolutions Chapter 10. Viability for single-valued fully nonlinear evolutions Chapter 11. Viability for multi-valued fully nonlinear evolutions Chapter 12. Carathéodory perturbations of m-dissipative operators Chapter 13. Applications Solutions to the proposed problems Bibliographical notes and comments Bibliography Name Index Subject Index Notation


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"This book deals with a systematic treatment of those tangency conditions in connection with viability or invariance problems of increasing generality, together with some applications of the previously developed abstract theory. The material is presented in a very clear and well-organized way."--Zentralblatt MATH 2012-1239-34068