具间断系数拟线性退化椭圆方程在可控增长下的正则性

对于具有VMO间断系数的散度型拟线性退化椭圆型方程,考虑了低阶项微分项在可控制增长条件下的弱解梯度的Morrey空间L^p,λ局部正则性,从而在已知数据正则性提高的条件下得到弱解具有优化Hlder指数的Hlder连续性结果。     

具间断系数的N维拟线性椭圆方程弱解的正则性

讨论了具间断系数的N维拟线性椭圆方程. 利用估计和差分逼近方法,证明了弱解的一阶导数H\"{o}lder连续到方程系数间断的内边界.     

一类具有二次自然增长条件的三角形椭圆组弱解的正则性

考虑非线性椭圆组 是有界域 (0.1) 其系数满足下列条件: 当相似文献   

具线性增长系数的拟线性挠射问题弱解的正则性

讨论了具特殊主部和线性增长系数的n维拟线性抛物挠射问题,利用估计和平均函数方法,证明了弱解在内边界附近的一些正则性质.把这些正则性结果从线性问题推广到这种拟线性问题.     

Heisenberg群上具VMO系数的退化椭圆方程的Morrey正则性

本文研究Heisenberg群上具有VMO(零平均振荡)系数的非散度型退化椭圆方程.通过证明适当的Sobolev-Poincaré型不等式,建立方程的Lp正则性;然后利用初等方法,得到退化椭圆方程解的Morrey正则性.     

A-调和逼近方法和具有可控增长条件的非线性椭圆方程组最优内部部分正则性

考虑具有可控增长条件的非线性椭圆方程组弱解的部分正则性．利用Duzaar和Grotowski引进的弱解部分正则性证明的新方法，该方法是建立在调和逼近技巧一般形式的基础上的，我们把前人的结果由自然增长条件推广到了可控增长条件，并且所得到的弱解导数的Hoelder指标是最优的．     

一类非线性椭圆组的弱解的部分正则性

本文在较弱的椭圆条件(H_1)和更一般的增长条件(H_5)下,证明了二阶非线性椭圆组弱解的C~(1,σ)-部分正则性.     

具有Dini连续性系数的非线性椭圆方程组在自然增长条件下的最优内部部分正则性

本文我们研究的是具有Dini连续性系数的散度形式的非线性椭圆方程组在自然增长条件下的问题．我们证明所用的方法是有Dugaar和Grotowski所引进的调和逼近技巧。这种技窍在证明弱解的局部正则性时非常重要．我们可以用之直接得到最优局部正则性结果．     

临界增长条件下一类半线性椭圆方程解的存在性

用变分方法研究了半线性椭圆方程Dirichlet迫值同题-△μ=f(x,μ） h（x）对几乎所有的x∈Ω，μ=0在δΩ上解的存在性，在临界增长情况下得到了所解的一个存在性定理．     

含临界指数的一类p-Laplacian奇异拟线性椭圆方程组正基态解的存在性

研究了一类含Sobolev临界指数的p-Laplacian奇异拟线性椭圆方程组,利用变分方法,结合Nehari流形和集中紧性原理证明对应的能量泛函满足局部(PS)条件,得到了这一方程组正基态解的存在性.     

Regularity of Solutions to Elliptic Equations with VMO Coefficients

The aim of this paper is to study the regularity of solutions to the Dirichlet problems for general second-order elliptic equations in Lebesgue and Morrey spaces. We consider both nondivergence and divergence forms and the coefficients of principle terms are assumed to be in VMO.     

Partial Regularity of the Minimizers of Quadratic Functionals with VMO Coefficients

The paper investigates the partial regularity of the minimizersfor quadratic functionals whose integrands have VMO coefficientsin principal part and nonlinear terms that are Carathéodoryfunctions. We use some majorizations for the functional, ratherthan the well known Euler equation associated to it.     

Parabolic and Elliptic Equations with VMO Coefficients

An L_p-theory of divergence and non-divergence form elliptic and parabolic equations is presented. The main coefficients are supposed to belong to the class VMO_x, which, in particular, contains all functions independent of x. Weak uniqueness of the martingale problem associated with such equations is obtained.     

Regularity in Morrey Spaces of Strong Solutions to Nondivergence Elliptic Equations with VMO Coefficients

In this paper, by means of the theories of singular integrals and linear commutators, the authors establish the regularity in Morrey spaces of strong solutions to nondivergence elliptic equations with VMO coefficients.     

Global Regularity in Generalized Morrey Spaces of Solutions to Nondivergence Elliptic Equations with VMO Coefficients

We show continuity in generalized Morrey spaces of sublinear integral operators generated by Calderón-Zygmund operator and their commutators with BMO functions. The obtained estimates are used to study global regularity of the solution of the Dirichlet problem for linear uniformly elliptic operators.     

General Linear Boundary Value Problems for Elliptic Operators with VMO Coefficients

We prove a priori estimates in Sobolev spaces for general linear elliptic boundary value problems with VMO coefficients.We give also results of existence and uniqueness of a solution.     

拟线性次椭圆方程组在Morrey空间上的部分正则性

证明了拟线性次椭圆方程组-X_α~*(a_(ij)~(αβ)(x,u)X_βu~j)=-X_α~*f_i~α+g_i,i=1,2,…,N,x∈Ω的弱解广义梯度Xu在Morrey空间L_x~(p,λ)(Ω,R~(mN))(p2)上的部分正则性,其中光滑实向量场族X=(X_1,X_2,…,X_m)满足H(o|¨)rmander有限秩条件,X_α~*是X_α的共轭;而且主项系数a_(ij)~(αβ)(x,u)关于x一致VMO(Vanishing Mean Oscillation的缩写,消失平均震荡)间断,且关于u为一致连续.     

The Caffarelli Alternative in Measure for the Nondivergence Form Elliptic Obstacle Problem with Principal Coefficients in VMO

We study the obstacle problem with an elliptic operator in nondivergence form with principal coefficients in VMO. We develop all of the basic theory of existence, uniqueness, optimal regularity, and nondegeneracy of the solutions. These results, in turn, allow us to begin the study of the regularity of the free boundary, and we show existence of blowup limits, a basic measure stability result, and a measure-theoretic version of the Caffarelli alternative proven in [3 Caffarelli , L.A. ( 1977 ). The regularity of free boundaries in higher dimensions . Acta Math. 139 : 155 – 184 .[Crossref], [Web of Science ®] , [Google Scholar]].