Electron. J. Diff. Equ., Vol. 2013 (2013), No. 79, pp. 1-17.

Oscillation criteria for fourth-order nonlinear delay dynamic equations

Yunsong Qi, Jinwei Yu

Abstract:
We obtain criteria for the oscillation of all solutions to a fourth-order nonlinear delay dynamic equation on a time scale that is unbounded from above. The results obtained are illustrated with examples

Submitted November 7, 2012. Published March 22, 2013.
Math Subject Classifications: 34K11, 34N05, 39A10.
Key Words: Oscillatory solution; delay dynamic equation; fourth-order; time scale.

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Yunsong Qi
Qingdao Technological University
School of Science
Qingdao, Shandong 266033, China
email: qys266520@163.com
Jinwei Yu
Qingdao Technological University
School of Science
Qingdao, Shandong 266033, China
email: yujwqdlg@163.com

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