1Department of Engineering Mathematics, Faculty of Engineering, Cairo University, Orman, Giza, 12221, Egypt
2Department of Mathematical Sciences, Florida Institute of Technology, Melbourne, FL 32901, USA
3Department of Mathematics, Politecnico di Milano, 20133 Milano, Italy
4Ramanujan Institute for Advanced Study in Mathematics, University of Madras, Chepauk, Chennai — 600 005, India
AMS subject classification: 39A10.
We establish some new sufficient conditions for the oscillation of solutions of fourth order nonlinear difference equations and when
Difference equation, oscillation, nonoscillation, comparison