group actions;
low-dimensional dynamics;
big mapping class groups;
rigidity;
GRAPHS;
D O I:
10.1017/etds.2020.43
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
Let Gamma denote the mapping class group of the plane minus a Cantor set. We show that every action of Gamma on the circle is either trivial or semiconjugate to a unique minimal action on the so-called simple circle.