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Abstract
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Advances in Difference Equations
Volume 2010 (2010), Article ID 606149, 15 pages
doi:10.1155/2010/606149

Frequent oscillatory behavior of delay partial difference equations with positive and negative coefficients

Li Hua Xu and Jun Yang

College of Science, Yanshan University, Qinhuangdao, Hebei 066004, China

Abstract

This paper is concerned with a class of nonlinear delay partial difference equations with positive and negative coefficients, which also contains forcing terms. By making use of frequency measures, some new oscillatory criteria are established.