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Abstract and Applied Analysis
Volume 2015, Article ID 890289, 8 pages
Research Article

An Obstacle Problem for Noncoercive Operators

Dipartimento di Matematica e Applicazioni “R. Caccioppoli”, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy

Received 15 May 2014; Accepted 31 August 2014

Academic Editor: Adrian Petrusel

Copyright © 2015 Luigi Greco et al. 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.


We study the obstacle problem for second order nonlinear equations whose model appears in the stationary diffusion-convection problem. We assume that the growth coefficient of the convection term lies in the Marcinkiewicz space -.