Authors: Said R. Grace, Ravi P. Agarwal, Raffaella Pavani, Jelena V. Manojlovic
Addresses: Faculty of Engineering, Department of Engineering Mathematics, Cairo University, Orman, Giza 12221, Egypt. ' Department of Mathematical Sciences, Florida Institute of Technology, Melbourne, FL 32901, USA. ' Department of Mathematics, Politecnico diMilano, 20133 Milano, Italy. ' Faculty of Science and Mathematics, Department of Mathematics and Computer Science, University of Nis, Visegradska 33, 18000 Nis, Serbia
Abstract: Some new criteria for the oscillation of the fourth order functional differential equation (1/a(t)(x″(t))α)″ = q(t)f(x[g(t)]) + p(t)h(x[σ(t)]) are established.
Keywords: comparison; functional differential equations; fourth order FDE; nonoscillation; oscillation.
International Journal of Dynamical Systems and Differential Equations, 2008 Vol.1 No.3, pp.155 - 163
Published online: 20 Jul 2008 *Full-text access for editors Access for subscribers Purchase this article Comment on this article