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University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Bounding genera of singular surfaces

## Bounding genera of singular surfacesAdd to your list(s) Download to your calendar using vCal - Brian Bowditch (University of Warwick)
- Thursday 20 April 2017, 11:00-12:00
- Seminar Room 2, Newton Institute.
If you have a question about this talk, please contact INI IT. NPC - Non-positive curvature group actions and cohomology 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. This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
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