天元讲堂(9.23):齐性动力系统系列报告之二
报告人:石荣刚(复旦大学)
地点: 维格堂319教室
时间: 2017年9月23日14:00-15:00
2017年9月23日15:00-16:00
2017年9月23日16:00-17:00
In this second talk, we continue and complete
the proof of Kleinbock-Margulis' theorem on quantitative
non escape of mass. After that we begin discussing
effective mixing for subgroup actions on X=SL(n, R)/SL(n, Z).
We present the proof of effective translates of horospherical
pieces by diagonal elements. The reference of this part is:
Kleinbock Margulis 1996 Bounded orbits of nonquasiunipotent flows on homogeneous spaces.