Noncoercive Perturbed Densely Defined Operators and Application to Parabolic Problems

Teffera M. Asfaw

Abstract and Applied Analysis, 2015, vol. 2015, 1-11

Abstract:

Let be a real locally uniformly convex reflexive separable Banach space with locally uniformly convex dual space . Let be maximal monotone and quasibounded generalized pseudomonotone such that there exists a real reflexive separable Banach space , dense and continuously embedded in . Assume, further, that there exists such that d for all and . New surjectivity results are given for noncoercive, not everywhere defined, and possibly unbounded operators of the type . A partial positive answer for Nirenberg's problem on surjectivity of expansive mapping is provided. Leray-Schauder degree is applied employing the method of elliptic superregularization. A new characterization of linear maximal monotone operator is given as a result of surjectivity of , where is of type with respect to . These results improve the corresponding theory for noncoercive and not everywhere defined operators of pseudomonotone type. In the last section, an example is provided addressing existence of weak solution in of a nonlinear parabolic problem of the type , ; , ; , , where , is a nonempty, bounded, and open subset of , satisfies certain growth conditions, and , , and is the conjugate exponent of .

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlaaa:357934

DOI: 10.1155/2015/357934

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