双曲空间 meaning in English

hyperbolic space
lobachevski space

The range of super - brownian motions on hyperbolic space
双曲空间上超布朗运动的范围
On ellipse in hyperbolic spaces
关于双曲空间中的椭圆
The concept of ellipse is extended to hyperbolic space and the equation is discussed . some geometric data of ellipse , such as symmetries , will be considered
摘要在双曲空间中引进相应的椭圆概念、讨论椭圆的方程，并对椭圆的对称性等几何性质做出细致考察。