论文标题
关于表面组和表面单词的刚性刚度
On the profinite rigidity of surface groups and surface words
论文作者
论文摘要
表面组通过极限组完成。作为推论，自由组中的表面单词集在涂鸦拓扑中封闭。
Surface groups are determined among limit groups by their profinite completions. As a corollary, the set of surface words in a free group is closed in the profinite topology.
