Normalized entropy versus volume for pseudo-Anosovs

Date: 
2016/10/26 Wed 16:30 - 17:30
Room: 
Room 110, Building No.3
Speaker: 
Sadayoshi Kojima
Abstract: 

We show that the ratio of the normalized entropy of pseudo-Anosovs of surfaces to the volume of their mapping tori is bounded from below by a positive constant not depending on the topology of surfaces, and then discuss a few of its corollaries.