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中国科学院大学学报 ›› 2011, Vol. 28 ›› Issue (5): 583-590.DOI: 10.7523/j.issn.2095-6134.2011.5.003

• 论文 • 上一篇    下一篇

一个含临界指数的拟线性椭圆型方程的注记

刘星, 孙义静   

  1. 中国科学院研究生院数学科学学院, 北京 100049
  • 收稿日期:2010-10-09 修回日期:2010-11-08 发布日期:2011-09-15
  • 基金资助:

    Supported by the Presidential Foundation of GUCAS

Some remarks on a quasilinear elliptic equation with critical exponent

LIU Xing, SUN Yi-Jing   

  1. School of Mathematics, Graduate University, Chinese Academy of Sciences, Beijing 100049, China
  • Received:2010-10-09 Revised:2010-11-08 Published:2011-09-15

摘要:

研究了如下的拟线性椭圆型方程:

Δpu + uq + λup*-1=0, uW01,p(Ω), (1λ)


其中, ΩRN 中具有光滑边界的有界区域,Δpu=div(| u |p-2 u ), N≥3, 2≤p<N, 0<q<1, p*= (Np)/(N-p). 设λ*(Ω,p,q) 是拟线性椭圆型方程(1λ) 可解的参数集的上确界.运用变分方法,在不要求具有对称性质的一般区域Ω上得到了λ*(Ω, p, q) 的一个可以精确计算的下界.

 

 

 

关键词: 拟线性椭圆型方程, 临界指数, Ekeland变分原理, 参数计算

Abstract:

We investigate the following quasilinear elliptic equation:

Δpu + uq + λup*-1 =0 , uW1,p0(Ω), (1λ)


where Ω is a bounded domain in RN with smooth boundary, Δpu=div(| u |p-2 u), N≥3, 2≤p < N, 0<q<1, and p*= (Np)/(N-p). By using variational methods, we obtain a lower bound of the extremal value λ*(Ω,p,q) for equation (1λ), which can be explicitly calculated.

 

 

Key words: quasilinear elliptic equation, critical exponent, Ekeland’s variational principle, extremal value

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