Existence and multiplicity results for semilinear equations with measure data

Alberto Ferrero, Claudio Saccon

DOI: http://dx.doi.org/10.12775/TMNA.2006.031

Abstract


In this paper, we study existence and nonexistence of solutions for the
Dirichlet problem associated with the equation $-\Delta u=g(x,u)+\mu$
where $\mu$ is a Radon measure. Existence and nonexistence of solutions strictly
depend on the nonlinearity $g(x,u)$ and suitable growth restrictions are
assumed on it. Our proofs are obtained by standard arguments from critical
theory and in order to find solutions of the equation, suitable functionals
are introduced by mean of approximation arguments and iterative schemes.

Keywords


Dirichlet problem; Radon measures; critical point theory

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