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Semilinear elliptic equations and systems with diffuse measures
Authors:Luigi Orsina  Augusto C. Ponce
Affiliation:(1) Dipartimento di Matematica, Università di Roma “La Sapienza”, Piazzale A. Moro 2, 00185 Roma, Italia;(2) Département de mathématique, Université catholique de Louvain, Chemin du Cyclotron 2, 1348 Louvain-la-Neuve, Belgique
Abstract:We study the equation −$$Delta u + g(x, u) = mu$$, where g(·, s) is finite outside sets of zero H 1-capacity, $$forall s in {mathbb{R}}$$, and μ is a diffuse measure. As an application, we provide a positive answer to a question of Lucio Boccardo concerning existence of solutions of an elliptic system with absorption.
A Lucio “Tu se’ lo mio maestro e ’l mio autore” (Dante, Inferno, I, 85)
Keywords:
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