Table of contents : Front Matter....Pages i-ix Periodic Solutions of First Order Linear Equations....Pages 1-11 Periodic Solutions of Generalized Difference Systems....Pages 11-26 Periodic Boundary Value Problems: First Order Systems....Pages 26-33 Periodic Boundary Value Problems: Second Order Systems....Pages 33-40 Periodic Solutions of Higher Order Partial Difference Equations....Pages 41-61 Nonlinear Variation of Parameter Methods: One Independent Variable....Pages 61-74 Nonlinear Variation of Parameter Methods: Several Independent Variables....Pages 74-84 Convergence to Equilibria....Pages 84-96 Asymptotic Behavior of Generalized Difference Systems....Pages 96-105 Stability of Generalized Difference Systems....Pages 105-112 Oscillation via Lyapunov’s Second Method....Pages 112-121 Oscillation via Difference Inequalities....Pages 121-134 Oscillation via Summation Averages....Pages 134-149 Oscillation for Nonlinear Difference Equations....Pages 149-166 Oscillation for Quasilinear Difference Equations....Pages 167-172 Oscillations Generated by Deviating Arguments....Pages 172-189 Positive Monotone Solutions for Nonlinear Difference Equations....Pages 189-197 Oscillation for n th Order Nonlinear Difference Equations....Pages 197-209 Comparison Theorems....Pages 209-219 Oscillation for Second Order Neutral Delay Difference Equations....Pages 219-227 Oscillation for Second Order Neutral Delay Difference Equations (Contd.)....Pages 227-233 Oscillation for Higher Order Neutral Delay Difference Equations....Pages 233-241 Oscillation for Partial Difference Equations I....Pages 241-271 Oscillation for Partial Difference Equations II....Pages 271-276 Oscillation for Partial Difference Equations III....Pages 277-296 Oscillation for Partial Difference Equations IV....Pages 296-310 A Three-Point Boundary Value Problem....Pages 311-318 A Singular Boundary Value Problem....Pages 318-329 Eigenvalues of Boundary Value Problems....Pages 329-350 Two Solutions of a Boundary Value Problem....Pages 350-361 ( n , p ) Boundary Value Problems....Pages 361-384 Boundary Value Problems Arising in Transport Phenomena....Pages 384-398 Solutions of m -Point Boundary Value Problems....Pages 398-413 Two-Point Boundary Value Problems for Generalized Difference Systems....Pages 414-425 Multi-Point Boundary Value Problems for Generalized Difference Systems....Pages 425-448 Resonant Boundary Value Problems for Generalized Difference Systems....Pages 449-464 Boundary Value Problems in Abstract Spaces....Pages 464-470 Linear Square Optimal Control Problem....Pages 471-478 Symmetries of Difference Systems on Manifolds....Pages 478-483 Discrete Polar Coordinates....Pages 483-491 Back Matter....Pages 492-510