In this paper we classify the positive solutions of the divergent equation with Neumann boundary on the upper half space......

In the paper,the authors provide a new proof and derive some new elliptic type(Hamilton type)gradient estimates for fast......

Lott,Sturm和Villani给出了度量测度空间Ricci曲率下界的定义,之后Ambrosio,Gigli和Savare又将Jordan,Kinderlehrer和Otto的欧式空......