BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Bounding genera of singular surfaces - Brian Bowditch (University 
 of Warwick)
DTSTART:20170420T100000Z
DTEND:20170420T110000Z
UID:TALK72101@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:If two simple closed curves on a closed surface lie in the sam
 e non-trivial homology class\, then they bound a singular orientable surfa
 ce. One can relate the minimal genus of such to distances in the curve gra
 ph. I will describe this\, and some related results. The proofs are not ha
 rd\, but call for some non-trivial input.&nbsp\; Maybe there is a simple c
 ombinatorial argument.  <br><br><br><br>
LOCATION:Seminar Room 2\, Newton Institute
END:VEVENT
END:VCALENDAR