Difference equations and their applications
著者
書誌事項
Difference equations and their applications
（Mathematics and its applications, v. 250）
Kluwer Academic Publishers, c1993
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Разностные уравнения и их прмложения
Raznostnye uravnenii︠a︡ i ikh prilozhenii︠a︡
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注記
Includes bibliographical references and index
内容説明・目次
内容説明
The theory of difference equations is now enjoying a period of Renaissance. Witness the large number of papers in which problems, having at first sight no common features, are reduced to the investigation of subsequent iterations of the maps f* IR. m ~ IR. m, m > 0, or (which is, in fact, the same) to difference equations The world of difference equations, which has been almost hidden up to now, begins to open in all its richness. Those experts, who usually use differential equations and, in fact, believe in their universality, are now discovering a completely new approach which re sembles the theory of ordinary differential equations only slightly. Difference equations, which reflect one of the essential properties of the real world-its discreteness-rightful ly occupy a worthy place in mathematics and its applications. The aim of the present book is to acquaint the reader with some recently discovered and (at first sight) unusual properties of solutions for nonlinear difference equations. These properties enable us to use difference equations in order to model complicated os cillating processes (this can often be done in those cases when it is difficult to apply ordinary differential equations). Difference equations are also a useful tool of syn ergetics- an emerging science concerned with the study of ordered structures. The application of these equations opens up new approaches in solving one of the central problems of modern science-the problem of turbulence.
目次
Notation. Preface. Introduction. Part I: One-Dimensional Dynamical Systems. 1. Introduction to the Theory of Dynamical Systems. 2. Periodic Trajectories. 3. Behavior of Trajectories. 4. Dynamical Systems for U-Maps. Part II: Difference Equations with Continuous Time. 1. Nonlinear Difference Equations. 2. Difference Equations with U Nonlinearity. Part III: Differential-Difference Equations. 1. Completely Integrable Differential-Difference Equations. 2. Differential-Difference Equations close to Difference Ones. 3. Singularly Perturbed Differential-Difference Equations. Part IV: Boundary-Value Problems for Hyperbolic Systems of Partial Differential Equations. 1. Reduction of Boundary-Value Problems to Difference and Differential-Difference Equations. 2. Boundary-Value Problem for a System with Small Parameter. 3. Boundary-Value Problem for System with Two Spatial Variables. References. Index.
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