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环上一类椭圆边值问题的三正解存在性
Existence of three positive radial solutions in annular domain for elliptic boundary value problems
【摘要】 在适当条件下证明了椭圆方程Δu +g(x )f(u) =0 ,R1<x <R2 (x∈Rn,n≥ 2 )的Dirichlet边值问题 3个正对径解的存在性
【Abstract】 An existence theorem of three positive radial solutions is given for elliptic Dirichlet boundary value problem Δ u(x)+g(x)f(u(x))=0, R 1<x<R 2, u(x) x=R 1 =u(x) x=R 2 =0,where x is in R n,n ≥2.Here R 1 and R 2 are constants with R 2>R 1>0.
【关键词】 二阶椭圆方程;
Dirichlet边值问题;
环域;
正对径解;
【Key words】 two order elliptic equation; Dirichlet boundary value problem; annular domain; positive radial solution;
【Key words】 two order elliptic equation; Dirichlet boundary value problem; annular domain; positive radial solution;
- 【文献出处】 西北师范大学学报(自然科学版) ,Journal of Northwest Normal University(Natural Science Edition) , 编辑部邮箱 ,2001年02期
- 【分类号】O175.25;O1758
- 【被引频次】1
- 【下载频次】20