Singular limits solution for two-dimensional elliptic problems involving exponential nonlinearities with nonlinear gradient terms and singular weights |
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Authors: | Sami Baraket Imed Abid Taieb Ouni |
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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
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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. |
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