Discrete Dynamics in Nature and Society
Volume 2012 (2012), Article ID 952932, 16 pages
http://dx.doi.org/10.1155/2012/952932
Research Article

Interval Oscillation Criteria of Second-Order Nonlinear Dynamic Equations on Time Scales

Yang-Cong Qiu1,2 and Qi-Ru Wang2

1Department of Humanities and Education, Shunde Polytechnic, Foshan, Guangdong 528333, China
2School of Mathematics and Computational Science, Sun Yat-Sen University, Guangzhou, Guangdong 510275, China

Received 7 May 2012; Revised 22 July 2012; Accepted 7 August 2012

Academic Editor: Yuriy Rogovchenko

Copyright © 2012 Yang-Cong Qiu and Qi-Ru Wang. 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.

Abstract

Using functions in some function classes and a generalized Riccati technique, we establish interval oscillation criteria for second-order nonlinear dynamic equations on time scales of the form (p(t)ψ(x(t))xΔ(t))Δ+f(t,x(σ(t)))=0. The obtained interval oscillation criteria can be applied to equations with a forcing term. An example is included to show the significance of the results.