Geometry Colloquium: Distance of bridge presentations of links and essential surfaces in link exteriors

2012-6-15 16:30 - 2012-6-15 18:00
Faculty of Science Building #3 Room 204
Yeonhee Jang (Nara Women's University)
For a given bridge presentation of a link, the distance of the
bridge presentation is the simplicial distance in the curve complex of
the bridge sphere between the two subcomplexes induced from the two
trivial tangles forming the bridge presentation. In this talk, we
discuss upper bounds of the distance given by using essential surfaces
in the link exterior and some applications.