Initial and boundary value problems for nonconvex valued multivalued functional differential equations.
Benchohra, M., Ntouyas, S. K. (2003)
Journal of Applied Mathematics and Stochastic Analysis
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Benchohra, M., Ntouyas, S. K. (2003)
Journal of Applied Mathematics and Stochastic Analysis
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Myelkebir Aitalioubrahim (2010)
Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
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We show the existence of solutions to a boundary-value problem for fourth-order differential inclusions in a Banach space, under Lipschitz’s contractive conditions, Carathéodory conditions and lower semicontinuity conditions.
Cernea, A. (2009)
Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
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A. Arara, Mouffak Benchohra, Sotiris K. Ntouyas, Abdelghani Ouahab (2004)
Archivum Mathematicum
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In this paper a fixed point theorem due to Covitz and Nadler for contraction multivalued maps, and the Schaefer’s theorem combined with a selection theorem due to Bressan and Colombo for lower semicontinuous multivalued operators with decomposables values, are used to investigate the existence of solutions for boundary value problems of fourth-order differential inclusions.
Gennaro Infante, Paolamaria Pietramala (2009)
Commentationes Mathematicae Universitatis Carolinae
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We establish new existence results for nontrivial solutions of some integral inclusions of Hammerstein type, that are perturbed with an affine functional. In order to use a theory of fixed point index for multivalued mappings, we work in a cone of continuous functions that are positive on a suitable subinterval of . We also discuss the optimality of some constants that occur in our theory. We improve, complement and extend previous results in the literature.