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Singular limits solution for two-dimensional elliptic problems involving exponential nonlinearities with nonlinear gradient terms and singular weights
Authors:Sami Baraket  Imed Abid  Taieb Ouni
Affiliation:1. Department of Mathematics, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
2. Département de Mathématiques, Faculté des Sciences de Tunis, Campus Universitaire, 2092, Tunis, Tunisia
Abstract:Given Ω bounded open regular set of ${mathbb{R}^2}$ , ${q_1,ldots, q_K in Omega}$ , ${varrho : Omega longrightarrow [0,+infty)}$ a regular bounded function and ${V: Omega longrightarrow [0,+infty)}$ a bounded fuction. We give a sufficient condition for the model problem $$(P):qquad-{Delta}u -{lambda}varrho(x)|{nabla}u|^2 = varepsilon^{2}V(x)e^u$$ to have a positive weak solution in Ω with u = 0 on ?Ω, which is singular at each q i as the parameters ${varepsilon}$ and λ tend to 0, essentially when the set of concentration points q i and the set of zeros of V are not necessarily disjoint.
Keywords:
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