Singular nonlinear elliptic equations in Rn

Autor: C. O. Alves, J. V. Goncalves, L. A. Maia
Jazyk: angličtina
Rok vydání: 1998
Předmět:
Zdroj: Abstract and Applied Analysis, Vol 3, Iss 3-4, Pp 411-423 (1998)
Druh dokumentu: article
ISSN: 1085-3375
10853375
DOI: 10.1155/S1085337598000633
Popis: This paper deals with existence, uniqueness and regularity of positive generalized solutions of singular nonlinear equations of the form −Δu+a(x)u=h(x)u−γ in Rn where a,h are given, not necessarily continuous functions, and γ is a positive number. We explore both situations where a,h are radial functions, with a being eventually identically zero, and cases where no symmetry is required from either a or h. Schauder's fixed point theorem, combined with penalty arguments, is exploited.
Databáze: Directory of Open Access Journals