广义拟线性Schr(o)dinger方程正解的存在性

本文利用扰动法和变分法研究一类拟线性Schr(o)dinger方程正解的存在性.本文的新颖性在于对权函数在远离原点处的光滑性不作要求.     

拟线性椭圆型方程带有混合奇异项的正整体解

在本文中,研究了方程div(｜u｜p-2u) f(x,u)=0,x∈RN,N≥3的正整体解,其中f(x,u)在u=0未假定是正则的,且f(x,u)可以同时包含超线性,亚线性项和奇异项.     

Positive Solutions of Quasilinear Elliptic Equations

This paper is concerned with existence theorems for positive solutions of the Dirichlet problem for quasilinear elliptic differential equation containing a gradient term. Using the shooting method and the a priori estimates for the first zero, we obtain sufficient conditions for the existence of classical positive solutions of the problem in the ball.__________Translated from Matematicheskie Zametki, vol. 78, no. 2, 2005, pp. 202–211.Original Russian Text Copyright © 2005 by E. I. Galakhov.     

Blow-up of Solutions to Quasilinear Parabolic Equations with Singular Absorption and a Positive Initial Energy

Mediterranean Journal of Mathematics - In this paper, the authors prove that the solution blows up in a finite time for a larger class of initial data, namely positive initial energy. The results...     

拟线性椭圆方程的衰减正解

本文建立了一类拟线性椭圆方程具有高度衰减阶正解的存在性，并对此类正解的最大值进行了上下界估计。     

Stabilization of Solutions of Certain Singular Quasilinear Parabolic Equations

In this paper, we study singular parabolic equations with “quadratic nonlinearity.” We consider questions of unique solvability, of stabilization of solutions at infinity, and of the presence of positive solutions.     

On Singular Solutions of Boundary Value Problems for Quasilinear Parabolic Equations with Absorption

The existence and nonexistence of non-trivial solutions for the boundary value problemare studied.     

一维奇异p-Laplace方程的正解

本文获得了一维奇异p－Laplace方程的Dirichlet边值问题（|y′|p-2y′）′＋g（t，y）＝0，y（0）＝y（1）＝0，P＞1的两个正解存在定理．这一结论是通过使用Leray－Schauder非线性抉择及上下解方法建立的．     

带参数的非线性奇异三阶非局部边值问题的单调正解

运用Guo-Krasnoselskii不动点定理研究了带积分边界条件的奇异三阶非局部边值问题,在非线性项满足适当的条件下建立了关于参数的区间,得到了边值问题至少存在一个或两个单调正解的若干存在性结果.     

SINGULAR PERTURBATIONS FOR QUASILINEAR HYPERBOLIC EQUATIONS

This paper deals with the following mixed problem for Quasilinear hyperbolic equationsThe M order uniformly valid asymptotic solutions are obtained and there errors areestimated.     

一类具奇异势的拟线性椭圆方程的无穷多解

本文用变分法和集中紧性原理获得了一类具奇异势的拟线性椭圆方程-Δ_pu=μ(|μ|~(P~*(s)-2)u)/(|x|~s) λf(x,u),u∈H_0~(1,p)(Ω)的无穷多解．     

一类拟线性椭圆型方程正奇异解的存在性

该文得到了一类拟线性椭圆型方程在球域( Ω=B_R={x∈R^N:|x|相似文献   

拟线性滞后型微分方程正解的存在性

本文研究了下面这种拟线性滞后型微分方程(g(u′)′+a(t) f (ut) =0 ,　　 0 1 ,满足非线性边界条件 .并且通过应用锥不动定理与阿尔采拉 -阿斯卡里定理 ,证明了上述方程至少存在一个正解 .     

带p-Laplacian算子的奇异脉冲微分方程正解的存在性

运用不动点指数理论,我们研究一类带p-Laplacian算子的奇异脉冲微分方程两点边值问题正解的存在性.     

Positive Solutions of Singular and Nonsingular Fredholm Integral Equations

The existence of positive solutions of the Fredholm nonlinear equation y(t) = h(t) + ∫^T₀k(t, s)[f(y(s)) + g(y(s))] ds is discussed. It is assumed that f is a continuous, nondecreasing function and g is continuous, nonincreasing, and possibly singular.     

Minimal Positive Solutions to Some Singular Second-Order Differential Equations

The existence of a minimal C¹[0, 1] positive solution is established for some second-order singular boundary value and initial value problems by new schemes, which are related to x′. Our nonlinearity may be singular at t = 0, 1, x = 0, or x′ = 0.     

二阶奇异边值问题的正解

利用Leary-Schauder不动点定理讨论了一类二阶奇异边值问题正解的存在性问题,并给出了一个正解存在的必要条件     

非线性奇异微分方程边值问题的正解

本文的主要结果为：若f(t,u):(0,1)×(0,+∞→[0,+∞）连续,关于u单调减少,存在实数b＞0使对任意0＜r＜1有（0,1）×（0,∞）,则奇异二阶边值问题有正解的充要条件为,有C1[0,1]正解的充分必要条件为其中α,β,σ,γ是非负实效,且为所述边值问题的Green函数．