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一类缺乏紧性的p-Laplacian方程非平凡弱解的存在性 被引量:12

The Existence of Nontrivial Weak Solutions of a Class of p-Laplacian Equationt without Compactness
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摘要 研究了形如-div(|x|α|u|p-2 u)+b(x)|u|p-2u=f(x,u)的p-Laplacian方程.通过选取适当的空间,用有界区域向无界区域逼近的方法,克服了缺乏紧性的困难,从而仅仅利用Caffarelli-Kohn-Niren-berg不等式和无(PS)条件的山路引理证明了这类方程在RN上非平凡弱解的存在性. This paper deals with the p- Laplacian equations such as -div ( | x |^α|∨ u |^p-2∨u ) + b ( x ) | u |^p-1 = f( x, u ). By selecting the appropriate space and approximating the bounded domain to the boundless domain, we overcome the difficulty of lack of compactness and obtain the the existence of nontrivial weak solutions in R^N with Caffarelli-Kohn-Nirenberg inequality and the mountain-pass-theorem without the (PS) condition.
作者 廖为 蒲志林
出处 《四川师范大学学报(自然科学版)》 CAS CSCD 北大核心 2006年第1期26-29,共4页 Journal of Sichuan Normal University(Natural Science)
基金 国家自然科学基金预研基金 四川省教育厅自然科学重点科研基金资助项目
关键词 P-LAPLACIAN Caffareli-Kohn-Nirenberg不等式 山路引理 弱解 p-Laplacian Caffarelli-Kohn-Nirenberg inequality The mountaln-pass-theorem Weak solution
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