Open book foliation and fractional Dehn twist coefficient

Series: 
Geometry Topology Seminar
Monday, October 1, 2012 - 14:00
1 hour (actually 50 minutes)
Location: 
Skiles 006
,  
University of Iowa
Organizer: 
The fractional Dehn twist coefficient (FDTC), defined by Honda-Kazez-Matic, is an invariant of mapping classes. In this talk we study properties of FDTC by using open book foliation method, then obtain results in geometry and contact geometry of the open-book-manifold of a mapping class. This is joint work with Tetsuya Ito.