本项目研究Quasi-fuchsian空间中的Earle slice. 主要有两个部分:一是尝试给出(0,4)型曲面和(2,0)型曲面所对应的Earle slice，并研究其在Quasi-fushsian空间中的宏观性质;二是研究在四维空间中的(1,1)型曲面在二阶变换下的Earle slice。

The project focuses on Earle slice of Quasi-fuchsian space. There are two mainparts: The first is to try to obtain the Earle slices for surfaces of type (0,4) and type (2,0) and study their macroscopic properties, and the second is to study the Earle slices associated with involutions for surface of type (1,1), which lie in four-dimension space.