BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Yago Antolin (Universidad Complutense de Madrid)
DTSTART:20210510T063000Z
DTEND:20210510T073000Z
DTSTAMP:20260423T021448Z
UID:SiN/18
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/SiN/18/">Geo
 metry and Complexity of positive cones in groups.</a>\nby Yago Antolin (Un
 iversidad Complutense de Madrid) as part of Symmetry in Newcastle\n\n\nAbs
 tract\nA positive cone on a group $G$ is a subsemigroup $P$\, such that $G
 $ is the disjoint union of $P$\, $P^{-1}$ and the trivial element. Positiv
 e cones codify naturally $G$-left-invariant total orders on $G$. When $G$ 
 is a finitely generated group\, we will discuss whether or not a positive 
 cone can be described by a regular language over the generators and how th
 e ambient geometry of $G$ influences the geometry of a positive cone.\n\nT
 his will be based on joint works with Juan Alonso\, Joaquin Brum\, Cristob
 al Rivas and Hang Lu Su.\n
LOCATION:https://researchseminars.org/talk/SiN/18/
END:VEVENT
END:VCALENDAR