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In this paper we give a partial affirmative answer to a conjecture of Greene-Wu and Yau. Among other things, we prove that a complete noncompact Kahler surface with positive and bounded sectional curvature and with finite analytic Chern number c1(M)^2 is biholomorphic to C2. 相似文献
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§0. Introduction In this paper, we continue studying the existence problem: The main difficulty we meet is generally lack of compact Sobolev embedding on unbounded domains. For the case of positive mass, we have proved in [1] the functional corresponding to (0.1) partially satisfies (P. S)_0 condition, then we may get nontrivial selution by Mountain Pass lemma. Here we shall give similar results for the case of zero mass. 相似文献
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In this paper, we use the concentration-compactness prieciple togther with the Mountain Pass Lemma to get the existence of nontrivial solutions of the following scalar field equations with strong nonlinearity 相似文献
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本文给出RN中有界域Ω上拟线性临界增长椭圆型方程的Dirichlet问题的非平凡W1,p(Ω)广义解的存在性结果。 相似文献
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注1 λ_1是算子L关于Dirichlet条件的第一个特征值,我们粗略地称f(x,u)为λ|u|~(p-1)u的超线性低阶微扰。 我们注意到p+1=(2n)/(n-2)是Sobolev嵌入H'_0→L~(p+1)的临界指数,此时嵌入不是紧致的,对应的变分泛函不满足(ps)条件,这将给用通常的对偶变分理论来处理(1)的多解性造成了很大困难。当p<(n+2)/(n-2)时,Ambrosetti-Rabinowitz的著名结果已经给出了 相似文献
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§1. Introduction In this paper, we consider the problem 相似文献
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In this paper we study the bifurcation problem for the following elliptic equalion (0.1) Here Lu= -△u has no eigenvalues and has only essential spectrum in R~N, the usual Lyapunov-Schmidt reduction cannot be used in problem (0.1). Meanwhile, L is not compact in H~1(R~N), of course, the method of topological degree is also 相似文献
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In this paper we study Dirichlet problem: u>0 x∈Ω, u=0 x∈ Ω,Where 1)Ω is a bounded domain in R~n(n≥3),(a_(ij)(x))is positive definite onΩ,a_(ij)(x)∈c~∞(Ω). 2)h(x,u):Ω×(Q,∞)→R is smooth in x,continuous in u,h(x,0)=0 andassume uniformly in x, uniformly in x, and b(x)>0 on Ω.tain the following results. 相似文献
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§0. Introduction This paper as well as the subsequent one is concerned with the existence of nontrivial solution on unbounded domains for quasilinear elliptic equation: with zero-Dirichlet condition. Its energy functional is 相似文献