Discrete Dynamics in Nature and Society
Volume 2006 (2006), Article ID 58532, 15 pages
doi:10.1155/DDNS/2006/58532
Existence criteria and classification schemes for positive solutions of second-order nonlinear difference systems
Wan-Tong Li1
, Can-Yun Huang1
and Sui Sun Cheng3
1School of Mathematics and Statistics, Lanzhou University, Lanzhou, Gansu 730000, China
3Department of Mathematics, National Tsing Hua University, Hsinchu, Taiwan 30043, China
Abstract
Classification schemes for positive solutions of a class of second-order nonlinear difference systems are given in terms of their asymptotic magnitudes; and necessary as well as sufficient conditions for the existence of these solutions are also provided. Finally, some examples are given to illustrate the main results.