Guiding-like functions for semilinear evolution equations with retarded nonlinearities

Autor: S. Cecchini, Luisa Malaguti
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Electronic Journal of Qualitative Theory of Differential Equations, Vol 2012, Iss 87, Pp 1-24 (2012)
Druh dokumentu: article
ISSN: 1417-3875
DOI: 10.14232/ejqtde.2012.1.87
Popis: The paper deals with a semilinear evolution equation in a reflexive and separable Banach space. The non-linear term is multivalued, upper Caratheodory and it depends on a retarded argument. The existence of global almost exact, i.e. classical, solutions is investigated. The results are based on a continuation principle for condensing multifields and the required transversalities derive from the introduction of suitable generalized guiding functions. As a consequence, the equation has a bounded globally viable set.The results are new also in the lack of retard and in the single valued case. A brief discussion of a non-local diffusion model completes this investigation.
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