"The first edition of this book has been the best introduction to difference equations available; the second edition improves this even further."
Martin Bohner, University of Missouri-Rolla
"The authors have their finger on the current trends in difference equations. This is a well-written textbook by authors who are known as teachers and expositors."
Johnny Henderson, Auburn University
Difference Equations, Second Edition offers a practical introduction to this important field of solutions for engineering and the physical sciences. Topic coverage includes discrete modeling, differential equations, combinatorics and numerical methods. A hallmark of this revision are the diverse applications to many subfields of mathematics.
Kelley (U. of Oklahoma) and Green (U. of Nebraska) present an overview of the many facets of difference equations which can be studied by elementary mathematical methods. Coverage includes discrete modeling, differential equations, combinatorics, and numerical methods. Diverse applications to many subfields of mathematics are included. The second edition contains new coverage of the behavior of solutions of systems of two linear equations (phase plane analysis), the theory of systems with periodic coefficients (Floquet Theory), the Secant method for finding roots of functions, Sarkovskii's theorem on the existence of periodic solutions of nonlinear equations, and use . Suitable as a textbook for middle undergraduate to beginning graduate students. No prior familiarity with difference equations is required; a good course in calculus would provide adequate preparation. Annotation c. Book News, Inc., Portland, OR (booknews.com)