In this article, we consider the third-order nonlinear differential equations with functional arguments. By using the Riccati inequality, we find conditions for all solutions to be oscillatory.
Submitted February 1, 2013. Published February 18, 2013.
Math Subject Classifications: 34K11, 34C10.
Key Words: Oscillation criteria; third order; Riccati inequality.
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| Yutaka Shoukaku |
Faculty of Engineering, Kanazawa University
Kanazawa 920-1192, Japan
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