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SUMMARY:Arnaud de Mesmay (Laboratoire d'Informatique Gaspard-Monge)
DTSTART:20211209T150500Z
DTEND:20211209T155500Z
DTSTAMP:20260423T003247Z
UID:GaTO/48
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GaTO/48/">Sh
 ort canonical decompositions of non-orientable surfaces</a>\nby Arnaud de 
 Mesmay (Laboratoire d'Informatique Gaspard-Monge) as part of Geometry and 
 topology online\n\n\nAbstract\nSuppose that $S$ is a surface and $G \\subs
 et S$ is an embedded graph.  In many applications\, during algorithm desig
 n\, and even when representing the embedding\, there is a basic task: to c
 ut $S$ into a single disk.  When $S$ is orientable\, it has long been know
 n how to compute a canonical cutting system that is also "short": each arc
  of the system runs along each edge of $G$ at most a constant number of ti
 mes. \n\nIn this talk we survey what is known about such cutting problems.
   We then explain how to obtain a short canonical system when $S$ is non-o
 rientable. \n\nThis is joint work with Niloufar Fuladi and Alfredo Hubard.
 \n
LOCATION:https://researchseminars.org/talk/GaTO/48/
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