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一类带临界指数增长的椭圆型方程组两个正解的存在性 被引量:1

The Existence of Two Positive Solutions to an Elliptic System with Critical Sobolev Exponents
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摘要 该文主要讨论带临界指数的椭圆型方程组{-Δu+a(x)u=2α/α+βuα-1vβ+f(x),x∈Ω,-Δu+b(x)v=2β/α+βuαvβ-1+g(x),x∈Ω,u>0,v>0,x∈Ω,u=v=0,x∈■Ω,解的存在性,其中Ω是R^(N)中一个光滑有界区域,N,N=3,4,a≥2,β≥2,α+β=2^(*)=2N/N-2,f(x)≥0,g(x)≥0,f(x),g(x)∈H^(-1)(Ω),a(x)≥0,b(x)≥0.证明了在一定条件下,问题(*)存在两个能量大于零的正解. In this paper,we consider the Existence of Solutions of an Elliptic System with Critical Sobolev Exponents {-Δu+a(x)u=2α/α+βuα-1vβ+f(x),x∈Ω,-Δu+b(x)v=2β/α+βuαvβ-1+g(x),x∈Ω,u>0,v>0,x∈Ω,u=v=0,x∈■Ω, WhereΩis a bounded smooth domain of R^(N),N=3,4,a≥2,β≥2,α+β=2^(*)=2 N/N-2,f(x)≥0,g(x)≥0,f(x),g(x)∈H^(-1)(Ω),a(x)≥0,b(x)≥0.We obtain that under some assumptions the problem(*)has two positive solutions with energy larger than zero.
作者 万优艳 谢俊 Youyan Wan;Jun Xie(School of Artificial Intelligence,Jianghan University,Wuhan 430056)
出处 《数学物理学报(A辑)》 CSCD 北大核心 2022年第1期103-130,共28页 Acta Mathematica Scientia
基金 湖北省教育厅科学研究计划指导性项目(B2019239)。
关键词 临界SOBOLEV指数 (PS)_(c)条件 Ljusternik-Schnirelman簇数 Critical Sobolev exponent Palais-Smale condition Ljusternlik-Schnirelman category
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