论文标题
离散的仿射转换组的正确行动
Proper actions of discrete groups of affine transformations
论文作者
论文摘要
在1980年代初期,玛格利斯(Margulis)通过展示了自由群体在3空间上的适当仿射行为的存在,回答了1977年提出的挑衅性和暗示性的问题。在本文中,我们讨论了这一问题的历史背景,对这个问题的最新进展以及这一发现启发的未来指导。
In the early 1980's Margulis startled the world by showing the existence of proper affine actions of free groups on 3-space, answering a provocative and suggestive question Milnor posed in 1977. In this paper we discuss the historical background motivating this question, recent progress on this subject, and future directions inspired by this discovery.