Elliptic problems with nonmonotone discontinuities at resonance.
Nikolaos, Halidias (2002)
Abstract and Applied Analysis
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Nikolaos, Halidias (2002)
Abstract and Applied Analysis
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Halidias, Nikolaos (2002)
Revista Colombiana de Matemáticas
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Halidias, Nikolaos (2003)
International Journal of Mathematics and Mathematical Sciences
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Nikolaos, Halidias (2002)
Abstract and Applied Analysis
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Filippakis, Michael E., Papageorgiou, Nikolaos S. (2004)
Abstract and Applied Analysis
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Antonella Fiacca, Nikolaos M. Matzakos, Nikolaos S. Papageorgiou, Raffaella Servadei (2003)
Czechoslovak Mathematical Journal
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In this paper we study nonlinear elliptic boundary value problems with monotone and nonmonotone multivalued nonlinearities. First we consider the case of monotone nonlinearities. In the first result we assume that the multivalued nonlinearity is defined on all . Assuming the existence of an upper and of a lower solution, we prove the existence of a solution between them. Also for a special version of the problem, we prove the existence of extremal solutions in the order interval formed...
Halidias, Nikolaos (2001)
Journal of Inequalities and Applications [electronic only]
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Huang, Nan-Jing, Lan, Heng-You, Teo, Kok Lay (2007)
Journal of Inequalities and Applications [electronic only]
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Narayanan, Al., Vijayabalaji, S. (2005)
International Journal of Mathematics and Mathematical Sciences
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Li, Dongsheng, Li, Pingping, Li, Xianyi (2008)
Advances in Difference Equations [electronic only]
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Mustafa, Zead, Sims, Brailey (2009)
Fixed Point Theory and Applications [electronic only]
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