Advances in Difference Equations
Volume 2010 (2010), Article ID 389109, 21 pages
doi:10.1155/2010/389109
Research Article

Oscillation of Second-Order Mixed-Nonlinear Delay Dynamic Equations

M. Ünal1 and A. Zafer2

1Department of Software Engineering, Bahçeşehir University, Beşiktaş, 34538 Istanbul, Turkey
2Department of Mathematics, Middle East Technical University, 06531 Ankara, Turkey

Received 19 January 2010; Accepted 20 March 2010

Academic Editor: Josef Diblik

Copyright © 2010 M. Ünal and A. Zafer. 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

New oscillation criteria are established for second-order mixed-nonlinear delay dynamic equations on time scales by utilizing an interval averaging technique. No restriction is imposed on the coefficient functions and the forcing term to be nonnegative.