Form Symmetries and Reduction of Order in Difference Equations

Hassan Sedaghat (Virginia Commonwealth University, USA)

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English

CRC Press Inc
24 May 2011

Algebra; Differential calculus & equations; Applied mathematics; Mathematical physics

Series: Advances in Discrete Mathematics and Applications

Form Symmetries and Reduction of Order in Difference Equations presents a new approach to the formulation and analysis of difference equations in which the underlying space is typically an algebraic group. In some problems and applications, an additional algebraic or topological structure is assumed in order to define equations and obtain significant results about them. Reflecting the author's past research experience, the majority of examples involve equations in finite dimensional Euclidean spaces.

The book first introduces difference equations on groups, building a foundation for later chapters and illustrating the wide variety of possible formulations and interpretations of difference equations that occur in concrete contexts. The author then proposes a systematic method of decomposition for recursive difference equations that uses a semiconjugate relation between maps. Focusing on large classes of difference equations, he shows how to find the semiconjugate relations and accompanying factorizations of two difference equations with strictly lower orders. The final chapter goes beyond semiconjugacy by extending the fundamental ideas based on form symmetries to nonrecursive difference equations.

With numerous examples and exercises, this book is an ideal introduction to an exciting new domain in the area of difference equations. It takes a fresh and all-inclusive look at difference equations and develops a systematic procedure for examining how these equations are constructed and solved.

By: Hassan Sedaghat (Virginia Commonwealth University USA)
Imprint: CRC Press Inc
Country of Publication: United States
Dimensions: Height: 234mm, Width: 156mm,
Weight: 589g
ISBN: 9781439807606
ISBN 10: 1439807604
Series: Advances in Discrete Mathematics and Applications
Pages: 328
Publication Date: 24 May 2011
Audience: College/higher education , General/trade , Primary , ELT Advanced
Format: Hardback
Publisher's Status: Active

Introduction. Difference Equations on Groups. Semiconjugate Factorization and Reduction of Order. Homogeneous Equations of Degree One. Type-(k,1) Reductions. Type-(1,k) Reductions. Time-Dependent Form Symmetries. Nonrecursive Difference Equations. Appendix. References. Index.

Hassan Sedaghat is a professor of mathematics at Virginia Commonwealth University. His research interests include difference equations and discrete dynamical systems and their applications in mathematics, economics, biology, and medicine.

Reviews for Form Symmetries and Reduction of Order in Difference Equations

This book presents a new approach to the formulation and study of difference equations. ... The book is well organized. It is addressed to a broad audience in difference equations. -Vladimir Sh. Burd, Mathematical Reviews, 2012e