Bounding genera of singular surfaces

Add 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
• Featured lists
• INI info aggregator
• Isaac Newton Institute Seminar Series
• School of Physical Sciences
• Seminar Room 2, Newton Institute
• bld31

Note that ex-directory lists are not shown.