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Big mapping class groups and rigidity of the simple circle
Ergodic Theory and Dynamical Systems ( IF 0.9 ) Pub Date : 2020-06-03 , DOI: 10.1017/etds.2020.43
DANNY CALEGARI , LVZHOU CHEN

Let $\unicode[STIX]{x1D6E4}$ denote the mapping class group of the plane minus a Cantor set. We show that every action of $\unicode[STIX]{x1D6E4}$ on the circle is either trivial or semiconjugate to a unique minimal action on the so-called simple circle.

中文翻译:

大映射类群和简单圆的刚性

$\unicode[STIX]{x1D6E4}$表示平面的映射类群减去康托集。我们证明了每一个动作$\unicode[STIX]{x1D6E4}$on the circle 要么是微不足道的,要么是半共轭的,以在所谓的简单的圆圈.
更新日期:2020-06-03
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