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一类半线性椭圆边值问题解的存在性

Existence of Solutions of the Semilinear Elliptic Boundary Value Problem
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摘要 研究半线性椭圆边值问题{-Δu(x)=λa(x)uq+b(x)up,x∈Ωu(x)=0,x∈■Ω的正解的存在性.其中Ω是RN中的有界光滑区域.λ>0是参数,0<q<p<N+2/N-2,函数a∈L∞(Ω),b∈C(Ω)∩L∞(Ω),a和b在Ω内都可以变号,但集合{x∈Ω:a(x)>0},{x∈Ω:b(x)>0}的测度均大于零. We discuss the existence of positive solutions of the semilinear elliptic boundary-value problem {-Δu(x)=λa(x)uq+b(x)up;x∈Ω,u(x)=0,x∈■Ω,where Ω is a bounded region with smooth boundary in RN,0&lt;q&lt;p&lt;N+2/N-2,λ&gt;0 and a,b:Ω→R are smooth functions which are somewhere positive but may change signs on Ω.
作者 陈林 王辉
出处 《内蒙古大学学报(自然科学版)》 CAS CSCD 北大核心 2013年第4期337-344,共8页 Journal of Inner Mongolia University:Natural Science Edition
基金 新疆维吾尔自治区普通高校重点学科经费资助(No.2012ZDXK11) 伊犁师范学院一般项目经费资助(No.2012YB014)
关键词 Nahari流形 欧拉泛函 临界点 Nahari manifold Euler function critical point
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参考文献9

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