Brian Bowditch University of Warwick
Thursday 20th April 2017 -
11:00 to 12:00
INI Seminar Room 2
If two simple closed curves on a closed surface lie in the same non-trivial homology class, then they bound a singular orientable surface. One can relate the minimal genus of such to distances in the curve graph. I will describe this, and some related results. The proofs are not hard, but call for some non-trivial input. Maybe there is a simple combinatorial argument.