Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4636713 | Applied Mathematics and Computation | 2006 | 11 Pages |
Abstract
This paper deals with existence of solutions of the quasilinear elliptic equation Îu = f(x, u, âu) in Ω satisfying the boundary blow-up condition u(x)âxââΩâ, where Ω â RN is a bounded domain with smooth boundary âΩ. Our main result applies to the existence of blow-up solutions of a class of equations which appear in Stochastic Control Theory, namely Îu = a(x)g(u) + λâ£âuâ£Ï + Ψ(x) in Ω, where a(x), g(u), Ψ(x) are suitable functions and λ, Ï are nonnegative constants. Our approach employs an approximation procedure combined with both a non-monotone iteration variant of the method of lower and upper solutions and fixed point arguments.
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
J.V. Goncalves, Angelo Roncalli,