Difference Equations by Differential Equation Methods Straightforward introduction for non-specialists and experts alike. Explains how to derive solutions, first integrals and conservation laws of difference equations. Peter E. Hydon (Author) 9780521878524, Cambridge University Press Hardback, published 7 August 2014 222 pages, 20 b/w illus. 120 exercises23.5 x 15.5 x 1.7 cm, 0.44 kg Most well-known solution techniques for differential equations exploit symmetry in some form. Systematic methods have been developed for finding and using symmetries, first integrals and conservation laws of a given differential equation. Here the author explains how to extend these powerful methods to difference equations, greatly increasing the range of solvable problems. Beginning with an introduction to elementary solution methods, the book gives readers a clear explanation of exact techniques for ordinary and partial difference equations. The informal presentation is suitable for anyone who is familiar with standard differential equation methods. No prior knowledge of difference equations or symmetry is assumed. The author uses worked examples to help readers grasp new concepts easily. There are 120 exercises of varying difficulty and suggestions for further reading. The book goes to the cutting edge of research; its many new ideas and methods make it a valuable reference for researchers in the field. Preface Acknowledgements 1. Elementary methods for linear ordinary difference equations 2. Simple symmetry methods for ordinary difference equations 3. Extensions of basic symmetry methods 4. Lattice transformations 5. Solution methods for partial difference equations 6. Conservation laws References Index. Subject Areas: Topology [PBP], Geometry [PBM], Numerical analysis [PBKS], Differential calculus & equations [PBKJ]
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