International Journal of Difference Equations

  • Year: 2007
  • Volume: 2
  • Issue: 2

Oscillation of fourth order nonlinear difference equations

  • Author:
  • Ravi P. Agarwal1, Said R. Grace2, Patricia J.Y. Wong3
  • Total Page Count: 15
  • DOI:
  • Page Number: 123 to 137

1Department of Mathematical Sciences, Florida Institute of Technology, Melbourne, FL 32901, U.S.A. E-mail: agarwal@fit.edu

2Department of Engineering Mathematics, Faculty of Engineering, Cairo University, Orman, Giza 12221, Egypt. E-mail: srgrace@eng.cu.edu.eg

3School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore. E-mail: ejywong@ntu.edu.sg

Abstract

In this paper we shall establish some new criteria for the oscillation of nonlinear fourth order difference equations of the form where α is the ratio of two positive odd integers.

Keywords

Discrete, oscillation, nonoscillation, comparison