Open Access

Riccati inequality and oscillation criteria for PDE with -Laplacian

Journal of Inequalities and Applications20062006:63061

DOI: 10.1155/JIA/2006/63061

Received: 1 November 2003

Accepted: 25 December 2004

Published: 5 March 2006


Oscillation criteria for PDE with -Laplacian div are obtained via Riccati inequality. Some of them are extensions of the results for the second-order linear ODE to this equation.


Authors’ Affiliations

Department of Mathematics, South China Normal University


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© Zhiting Xu 2006

This article is published under license to BioMed Central Ltd. 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.