华南理工大学学报(自然科学版) ›› 2003, Vol. 31 ›› Issue (3): 49-52.

• 数学科学 • 上一篇    下一篇

包含临界指数的半线性椭圆型方程的正解 

姚仰新 陈志辉 付一平 傅红卓   

  1. 华南理工大学 应用数学系‚广东 广州510640
  • 出版日期:2003-03-20 发布日期:2022-04-22
  • 通信作者: 姚仰新(1957-)‚男‚副教授‚主要从事偏微分方程研究.
  • 作者简介:姚仰新(1957-)‚男‚副教授‚主要从事偏微分方程研究.
  • 基金资助:
    国家自然科学基金资助项目(10171032);广东省自然科学基金资助项目(011606)

Positive Solution of a Semilinear Elliptic Equation with Critical Exponent 

Yao Yang-xin Chen Zhi-hui Fu Yi-ping Fu Hong-zhuo   

  1. Dept.of Applied Mathematics‚South China Univ.of Tech.‚Guangzhou510640‚China
  • Online:2003-03-20 Published:2022-04-22
  • Contact: Yao Yang-xin (born in 1957)‚male‚associate professor‚mainly researches on partial defferential equation.
  • About author:Yao Yang-xin (born in 1957)‚male‚associate professor‚mainly researches on partial defferential equation.
  • Supported by:
     Supported by the National Natural Science Foundation of China (10171032) and Guangdong Provincial Natural Science Foundation(011606)

摘要: 利用 Sobolev-Hardy 不等式和山路几何研究了如下包含临界指数的半线性椭圆型方程正解的存在性:
  -div(|x|β ∇u)=|x| α u p-1 +λ|x| σ u q-1 ‚x∈Ω;u>0‚x∈Ω;u=0‚x∈∂Ω.

关键词: 半线性椭圆型方程, 临界指数, 正解, Sobolev-Hardy 不等式

Abstract:  In this paper‚the existence of the positive solution of the follwing semilinear elliptic equation with critical exponent is studied:
-div(|x|β ∇ u)=|x| α u p-1 +λ|x| σ u q-1 in Ω‚u>0in Ω‚u=0on∂Ω‚
by using Sobolev-Hardy inequality and the Mountain Pass Geometry.

Key words:  semilinear elliptic equation, critical exponent, positive solution, Sobolev-Hardy inequality

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