TY - BOOK AU - Hydon,Peter E. TI - Difference equations by differential equation methods T2 - Cambridge monographs on applied and computational mathematics SN - 9781139016988 (ebook) AV - QA431 .H93 2014 U1 - 515/.625 23 PY - 2014/// CY - Cambridge PB - Cambridge University Press KW - Difference equations KW - Differential equations KW - Numerical solutions N1 - Title from publisher's bibliographic system (viewed on 05 Oct 2015); 1. Elementary method for linear O[delta]Es -- 2. Simple symmetry method for O[delta]Es -- 3. Extensions of basic symmetry methods -- 4. Lattice transformations -- 5. Solution methods for P[delta]Es -- 6. Conservation laws -- References -- Index N2 - 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 UR - https://doi.org/10.1017/CBO9781139016988 ER -