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MULTIPLE POSITIVE SOLUTIONS OF INHOMOGENEOUS SEMILINEAR ELLIPTIC EQUATIONS IN UNBOUNDED DOMAINS IN R^2 被引量:1

MULTIPLE POSITIVE SOLUTIONS OF INHOMOGENEOUS SEMILINEAR ELLIPTIC EQUATIONS IN UNBOUNDED DOMAINS IN R ̄2
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摘要 In this paper,we consider the existence of multiple positive solutions of the following inhomepeneous semilinear elliptic equation where λ> 0.ed and ω is a bounded smooth open set in R2,h(x)∈ L 2(Ω),h(x) 0.f(t)∈ C1([0.+∝)) satisfies f(0) =f'(0)=0.fn(t) exists and fn(t)> 0.0<f(t) <Cexp(at) for some constants C,α> 0.0 <u <2 and t∈(0.+c),f(t)<0tf'(t) for someθ ∈(0,1). By looking for the local miaimum of the corresponding energy functional we tain the first minimum positive solution and by applying mountain pass lemma around the ndboum positive solution we prove the following result: In this paper,we consider the existence of multiple positive solutions of the following inhomepeneous semilinear elliptic equation where λ> 0.ed and ω is a bounded smooth open set in R2,h(x)∈ L 2(Ω),h(x) 0.f(t)∈ C1([0.+∝)) satisfies f(0) =f'(0)=0.fn(t) exists and fn(t)> 0.0<f(t) <Cexp(at) for some constants C,α> 0.0 <u <2 and t∈(0.+c),f(t)<0tf'(t) for someθ ∈(0,1). By looking for the local miaimum of the corresponding energy functional we tain the first minimum positive solution and by applying mountain pass lemma around the ndboum positive solution we prove the following result:
作者 曹道珉
出处 《Acta Mathematica Scientia》 SCIE CSCD 1994年第3期297-312,共16页 数学物理学报(B辑英文版)
关键词 has.at least two positive solutions if λ∈(0 λ).whereλ>0 is someconstant and(P)λ hasno positive solution if λ>λ has.at least two positive solutions if λ∈(0,λ).whereλ>0 is someconstant and(P)λ,hasno positive solution if λ>λ
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