一类非线性椭圆型方程的一个Liorville定理

设（M^m,g)是一个n维的完备黎曼流形,其Ricci曲率满足RicM(x)≥-A（1 r^2(x)ln^2(2 r(x))),其中A是非负常数,r(x)表示点x∈M到某固定点x0∈M的测地距离。则M上方程△u Su Ku^a=0在下述条件“⑴在M上S≤0;⑵在M上K＜0且有常数a＞0使在一个紧集之外K≤-a^2;⑶常数a＞1”下的C^2-非负解只有零解。     

关于椭圆型方程解的Liouville定理

在ｂ（ｘ）的较弱条件下，对下面的椭圆型方程，证整解的Ｌｉｏｕｖｉｌｌｅ 定理成立。     

椭圆型方程广义解Liouville型定理的一个注

在Ｅⁿ考虑椭圆方程(?)其中Ａ，Ｂ满足如下的结构条件：(?)本文证明如果广义整解ｕ∈W_p,loc¹(Eⁿ)∩ L_α(Eⁿ)，其中(?)那么ｕ≡０．     

椭圆型方程广义解的Liouville定理

在n维欧氏空间Eⁿ中考虑方程divA(x,u,▽u)=B(x,u,▽u)并证明广义解的Liouville定理成立,其中设A、B满足结构条件.     

对角形椭圆型方程组的解的Liouville定理

考虑对角型椭圆组=f_i(x,u,(?)u),i=1,2,…,N. 对一种特殊情形证明其广义解的Liouville型定理成立.     

轴对称Navier-Stokes方程的Liouville型定理

不可压Navier-Stokes方程的有界古代解分类是一个古老而困难的问题,与Navier-Stokes方程整体正则性理论关系密切.特别地,有关于轴对称Navier-Stokes方程的如下Liouville型猜想:对于3维不可压轴对称Navier-Stokes方程,其有界古代解是常数.本文给出一种新的加权能量估计的方法...     

一类高阶非线性椭圆型方程的比较定理

本文利用极值原理得到了一类2m阶非线性椭圆型微分方程的比较定理。     

三维稳态Navier-Stokes-Poission方程的Liouville型定理

本文研究了三维稳态Navier-Stokes-Poission方程的Liouville型定理.利用能量方法,证明了如果光滑解(ρ, u,Φ)满足一些合适的条件,则u=0.本文的结果推广了Chae的结果(Nonlinearity, 2012, 25(5):1345–1349)到Lorentz空间.     

拟线性椭圆方程广义解的Liouville定理

本文证明了广义解的Liouvill定理成立。     

A priori Estimates and Existence for a Class of Fully Nonlinear Elliptic Equations in Conformal Geometry

In this paper we prove the interior gradient and second derivative estimates for a class of fully nonlinear elliptic equations determined by symmetric functions of eigenvalues of the Ricci or Schouten tensors. As an application we prove the existence of solutions to the equations when the manifold is locally conformally flat or the Ricci curvature is positive.     

A New Proof of Calabi-Yau's Theorem

We give a new proof of Calabi-Yau's theorem on the volume growth of Rie- mannian manifolds with non-negative Ricci curvature.     

A Class of Singularly Perturbed Semilinear Elliptic Equations

The singularly perturbed problem for the semilinear elliptic equations is considered. Under appropriate conditions, by using the comparison theorem, the existence and asymptotic behavior of solution for the boundary value problems are studied.     

A New Proof of Calabi-Yau＇s Theorem

We give a new proof of Calabi-Yau＇s theorem on the volume growth of Riemannian manifolds with non-negative Ricci curvature.     

局部对称空间中具有平行平均曲率向量的黎曼叶层的Pinching定理

本文利用Nakagawa和Takagi的计算散度的方法,求出局部对称空间中具有平行平均曲率向量的黎曼叶状结构${\cal F}$上向量场的散度,并证明了其上的整体Pinching定理.     

A Theorem of Liouville Type for Harmonic Morphisms

Let : M N be a harmonic morphism from a complete noncompact Riemannian manifold M with nonnegative Ricci curvature to a complete Riemannian manifold N with nonpositive scalar curvature. We show if the energy of is finite, then is constant. This can be compared with a similar result for harmonic maps when N has nonpositive sectional curvature due to Schoen and Yau.     

A Liouville Type Theorem for Special Lagrangian Equations with Constraints

We derive a Liouville type result for special Lagrangian equations with certain “convexity” and restricted linear growth assumptions on the solutions.