De Lvzhou Chen
Surfaces of infinite type, such as the plane minus a Cantor set, occur naturally in dynamics. However, their mapping class groups are much less understood compared to the mapping class groups of surfaces of finite type. For the mapping class group G of the plane minus a Cantor set, we show that any nontrivial G-action on the circle is semi-conjugate to its action on the so-called simple circle. I will also explain what happens in the more general situation where we replace the plane by a once-punctured surface of finite genus. This is mostly based on joint work with Danny Calegari.
De Andres Navas
De Bruno Duchesne
De Hélène Eynard-Bontemps
De Emmanuel Militon
De Maxime Wolff
De Emmanuel Militon
De Juan Camilo Arosemena Serrato
De Michele Triestino
De Joaquin Brum
De Victor Kleptsyn
De Nicolas Tholozan
De Pierre-Louis Blayac
De Franco Vargas Pallete
