Discrete Dynamics in Nature and Society
Volume 2006 (2006), Article ID 37103, 12 pages

Existence of positive solutions for certain partial difference equations

Binggen Zhang1 and Qiuju Xing2

1Department of Mathematics, Ocean University of China, Qingdao 266071, China
2Department of Mathematics and Physics, Xi'an Institute of Technology, Xi'an 710032, China

Received 27 June 2005; Accepted 10 October 2005

Copyright © 2006 Binggen Zhang and Qiuju Xing. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We give some sufficient conditions for the existence of positive solutions of partial difference equation aAm+1,n+1+bAm,n+1+cAm+1,ndAm,n+Pm,nAmk,n1=0 by two different methods.