具有Sobolev临界指数的半线性椭圆方程的正解 |
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作者姓名: | 郭千桥 崔学伟 |
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作者单位: | 西北工业大学应用数学系, 西安 710072 |
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基金项目: | supported by Natural Science Basic Research Plan in Shaanxi Province of China(2006A09) |
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摘 要: | 在 R n中具有光滑边界的有界域Ω内考虑具有Dirichlet边界条件的半线性椭圆方程- Δ u-μ u |x|2 =g(x,u)+|u|2*-2u,这里g(x,·)在无穷远处具有次临界增长.由变分法,利用Brézis和Nirenberg "Positive solutions of nonlinear elliptic equations involving critical Sobolev exponents. Comm. Pure Appl. Math. 1983, 36: 437~477" 的思想,证明了正解的存在性.
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关 键 词: | Sobolev临界指数 Hardy位势 山路引理 |
收稿时间: | 2008-02-27 |
修稿时间: | 2008-07-17 |
Positive solutions for semilinear elliptic equations with critical Sobolev exponents |
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Authors: | GUO Qian-Qiao CUI Xue-Wei |
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Institution: | Department of Applied Mathematics, Northwestern Polytechnical University, Xi’an 710072, China |
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Abstract: | We consider the following semilinear elliptic equation - Δ u-μ u |x|2 =g(x,u)+|u|2*-2u in Ω with Dirichlet boundary condition, where g(x,·) has subcritical growth at infinity. The existence of positive solutions are obtained by variational method in the spirit of Brézis-Nirenberg. |
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Keywords: | critical Sobolev exponents Hardy potentials mountain pass lemma |
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