具Hardy-Sobolev临界指数的奇异椭圆方程多解的存在性

运用变分方法研究了下面问题-Δpu=μupx(s)s-2u f(x,u),x∈Ω,u=0,x∈Ω,多重解的存在性,其中Ω是一个具有光滑边界的有界区域.     

On Blow-Up of Positive Solutions for A Riharmonic Equation Involving Nearly Critical Exponent

In this paper a biharmonic problem with Navier boundary condition involving nearly critical growth is considered: △²=u^{(n+4)/(n-4)-r} u > 0 inΩ and u=△u=0 on ?Ω, where iΩs a bounded smooth convex domain in Rⁿ (n≥5) and r > 0 is small. We show that any sequence of positive solutions with r→0 has to blow up and concentrate at finitely many points in the interior of the domain ω. With blow-up argument, we also give the energy a priori estimate of positive solutions.     

几乎临界增长的半线性椭圆方程正解的存在性

该文讨论一个几乎临界增长的半线性椭圆方程 .证明了对相应的格林函数的每个严格的局部极小点 x0 ,所考虑的问题有一个正解集中在 x0 .     

包含Caffarelli-Kohn-Nirenberg临界指数的非齐次椭圆方程

该文讨论了一类包含Caffarelli-Kohn-Nirenberg临界指数的非齐次椭圆方程解的存在性.应用Nehari流形和变分方法,得到了方程存在两个非平凡解.     

带有Sobolev-Hardy临界指标项的非齐次椭圆方程的解

考虑带有Hardy和Sobolev-Hardy临界指标项的非齐次椭圆方程{-Δu-u(u/(|x|~2))=λu+(((|u|~(2~*(s)-2))/(|x|~s))u+f,在Ω中,u=0,在Ω上,这里2~*(s)=(2(N-s))/(N-2)是临界Sobolev-Hardy指标,N≥3,0≤s2,0≤μ=((N-2)~2)/4,ΩR~N是一个开区域.假设0≤λ≤λ_1时,λ_1是正算子-△-μ/(|x|~2)的第一特征值.f∈H~1_0(Ω)~*,f(x)≠0.当f满足适当的条件时,此方程在H~1_0(Ω)中至少具有两个解u_0和u_1.而且,当f≥0时,有u_0≥0和u_1≥0.     

具临界Sobolev-Hardy指数的半线性椭圆方程的非平凡解

本文研究了如下问题：-div（｜x｜β△u）=｜x｜^a｜u｜^2（α,β）-2u＋λ｜x｜σ｜u｜^q-2,x∈Ω,u=0,x∈δΩ,这里Ω∪→R^N是有界光滑区域且0∈Ω，2（α，β）=2（N＋α）/N＋β-2，运用Sobolev-Hardy不等式和山路几何，证明了在一定的条件下方程至少存在一个非平凡解。     

具Hardy-Sobolev临界指数的半线性椭圆方程的多解存在性

本文考虑一类具Hardy-Sobolve临界指数的半线性椭圆方程,通过证明局部(P．S．)条件和能量估计,运用伪指标理论得到了这类方程多解的存在性(见文[1-13])．     

On Elliptic System Involving Critical Sobolev Exponent and Weights

This paper is devoted to the existence and nonexistence of positive solutions for a semilinear elliptic system involving critical Sobolev exponent and weights. We study the effect of the behavior of weights near their minima on the existence of solutions for the considered problem.     

Infinitely Many Solutions for an Elliptic Problem with Critical Exponent in Exterior Domain

We consider the following nonlinear problem {-△u=uN＋2/N-2,u〉0 in R^N/Ω,u（x）→0 as｜x｜→＋∞,δu/δn=0 on δΩ,where Ω belong to RN,N ≥ 4 is a smooth and bounded domain and n denotes inward normal vector of δΩ. We prove that the above problem has infinitely many solutions whose energy can be made arbitrarily large when Ω is convex seen from inside （with some symmetries）.     

带有临界指数的椭圆型方程的正解的存在性

本文主要采用变分方法来研究一类带有临界指数的椭圆型方程的正解的存在性问题.并且,在Ω领域(有界或无界)中的许多条件下,可以证明其基态解的存在性.     

一类近似共振的半线性椭圆问题的多重解

用环绕方法证明了一类半线性薛定谔方程三个非平凡解的存在性.     

Degenerate Semilinear Elliptic Equations with Critical Exponent

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带有临界指数的椭圆方程多重正解的存在性

采用变分方法考虑了一类带有临界指数和有限个奇点的椭圆方程正解的存在性问题,利用临界点理论可以得到V(x)的每一个奇点都可以产生一个正解.     

带非齐次项和Sobolev Hardy临界指数的奇异椭圆方程的多解

该文讨论一个带非齐次项和Sobolev Hardy临界指数的半线性奇异椭圆型方程的多解问题. 证明了当方程中的参数小于某个已知的常数时，所考虑的问题有两个解     

界域上具Hardy临界指数项的半线性椭圆方程的多解存在性

考虑了无界域上一类具Hardy临界指数项的半线性椭圆方程,通过证明局部(P．S．)条件和能量估计,运用伪指标理论得到了这类方程多解的存在性．     

Existence of Positive Solutions for Kirchhoff Type Problems with Critical Exponent

In this paper,we consider the following Kirchhoff type problemwith critical exponent $-(a+b∫_Ω|∇u|^2dx)Δu=λu^q+u^5, in\ Ω, u=0, on\ ∂Ω$, where $Ω⊂R^3$ is a bounded smooth domain, $0< q < 1$ and the parameters $a,b,λ > 0$. We show that there exists a positive constant $T_4(a)$ depending only on a, such that for each $a > 0$ and $0 < λ < T_4(a)$, the above problem has at least one positive solution. The method we used here is based on the Nehari manifold, Ekeland's variational principle and the concentration compactness principle.     

具Hardy-Sobolev界指数的非齐次椭圆方程的正解

讨论-类具Hardy-Sobolev临界指数的非齐次半线性椭圆方程,通过应用Lions集中紧性原理建立了S_μ(Q)的极小函数,再结合Ekeland变分原理、山路引理和Nehari流形的分析方法证明了方程在适当条件下正解的存在性与多重性.     

含有Sobolev-Hardy临界指标的奇异椭圆方程无穷多解的存在性

该文研究如下奇异椭圆方程-Δu- μu｜x｜2 =｜u｜2 (s) -2 u｜x｜s λ｜u｜q-2 u ,u∈H10 (Ω) ,　x∈Ω ,0 ≤ μ< μ =(N- 2 ) 24 ,其中Ω是RN 中的有界区域 ,0 ∈Ω ,N≥ 3.2 (s) =2 (N -s)N- 2 ( 0 ≤s≤ 2 )是临界Sobolev Hardy指标 ,1 相似文献   

Multiplicity of Solutions for Elliptic System Involving Supercritical Sobolev Exponent

The multiplicity of positive solutions are established for a class of elliptic systems involving nonlinear Schrödinger equations with critical or supercritical growth. The solutions are obtained by using Moser iteration technique.