Biharmonic equation, Critical exponent, Multiple solutions.,"/> <sup>Δ2α</sup>=λμ+μ(N+4)/(N-4)+μf(x)的多解存在性

数学物理学报 ›› 1999, Vol. 19 ›› Issue (2): 138-148.

• 论文 • 上一篇    下一篇

Δ2α=λμ+μ(N+4)/(N-4)+μf(x)的多解存在性

  

  1. (华中师范大学数学系 武汉 430079)
  • 出版日期:1999-05-01 发布日期:1999-05-01

Existence of muliple positive solution for Δ2 α=λμ+μ(N+4)/(N-4)+μf(x)  

  1. (Huazhong Normal University, Wuhan 430079)

  • Online:1999-05-01 Published:1999-05-01

摘要:

讨论了非齐次双调和方程边值问题

Δ2u =λu + u(N+4)/(N-4)+μf(x), x∈Ω,

u| Ω=Δu| Ω=0,

的两个正解的存在性和非存在性.这里Ω是R\+N内有界光滑区域,N>4,λ∈R\+1,μ≥0,f(x)是非负连续函数.

关键词: 双调和问题, 临界指标, 多解.

Abstract:

In this paper, we discuss the existence and nonexistence of solutions for the problem

Δ2u =λu + u(N+4)/(N-4)+μf(x), x∈Ω,

u| Ω=Δu| Ω=0,

N>4, where Ω is a bounded smoothness domain in RN,λ∈R\+1,μ≥0,f(x) is a given nonnegative function. Some interesting results have been obtained.

Key words: Biharmonic equation, Critical exponent, Multiple solutions.')">Biharmonic equation, Critical exponent, Multiple solutions.

中图分类号: 

  • 35J