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发表时间:2019-08-30 阅读次数:152次
报告题目: The Mapping Class Group of a shift of finite type
报 告 人:Mike Boyle
报告人所在单位:University of Maryland
报告日期:2019-08-30 星期五
报告时间:14:30-15:20
报告地点:光华楼东主楼1801
  
报告摘要:
We study the mapping class group of a nontrivial irreducible shift of finite type: the group of flow equivalences of its mapping torus modulo isotopy. This group plays for flow equivalence the role that the automorphism group plays for conjugacy. It is countable; not residually finite; acts faithfully (and n-transitively, for all n) by permutations on the set of circles in the mapping torus; has solvable word problem and trivial center; etc. This is a joint work with Sompong Chuysurichay.
 
  
本年度学院报告总序号:190

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