Existence Theory for Nonlinear Ordinary Differential Equations - Mathematics and Its Applications - Donal O'regan - Livros - Springer - 9789048148356 - 6 de dezembro de 2010
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Existence Theory for Nonlinear Ordinary Differential Equations - Mathematics and Its Applications Softcover Reprint of the Original 1st Ed. 1997 edition

Donal O'regan

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Existence Theory for Nonlinear Ordinary Differential Equations - Mathematics and Its Applications Softcover Reprint of the Original 1st Ed. 1997 edition

We begin our applications of fixed point methods with existence of solutions to certain first order initial initial value problems. This problem is relatively easy to treat, illustrates important methods, and in the end will carry us a good deal further than may first meet the eye. Thus, we seek solutions to Y'. = I(t,y) (1. 1 ) { yeO) = r n where I: I X R n ---+ R and I = [0, b]. We shall seek solutions that are de­ fined either locally or globally on I, according to the assumptions imposed on I. Notice that (1. 1) is a system of first order equations because I takes its values in Rn. In section 3. 2 we will first establish some basic existence theorems which guarantee that a solution to (1. 1) exists for t > 0 and near zero. Familiar examples show that the interval of existence can be arbi­ trarily short, depending on the initial value r and the nonlinear behaviour of I. As a result we will also examine in section 3. 2 the dependence of the interval of existence on I and r. We mention in passing that, in the results which follow, the interval I can be replaced by any bounded interval and the initial value can be specified at any point in I. The reasoning needed to cover this slightly more general situation requires minor modifications on the arguments given here.


200 pages, biography

Mídia Livros     Paperback Book   (Livro de capa flexível e brochura)
Lançado 6 de dezembro de 2010
ISBN13 9789048148356
Editoras Springer
Páginas 200
Dimensões 155 × 235 × 11 mm   ·   299 g
Idioma English  

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