BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Federico Scavia (UBC)
DTSTART:20210730T190000Z
DTEND:20210730T200000Z
DTSTAMP:20260407T231318Z
UID:agstanford/54
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/agstanford/5
 4/">The Grothendieck ring of stacks</a>\nby Federico Scavia (UBC) as part 
 of Stanford algebraic geometry seminar\n\n\nAbstract\nThe Grothendieck rin
 g of algebraic stacks was introduced by T. Ekedahl in \n2009\, following u
 p on work of other authors. It is a generalization of the \nGrothendieck r
 ing of varieties. For every linear algebraic group $G$\, we may \nconsider
  the class of its classifying stack $BG$ in this ring. Computing the \ncla
 ss of $BG$ is related to the famous rationality problem for fields of \n$G
 $-invariants (Noether's problem). I will give a brief introduction to the 
 \nGrothendieck ring of stacks\, and then talk about some of my results in 
 this \narea.\n\nThe synchronous discussion for Federico Scavia’s talk is
  taking place not in zoom-chat\, but at https://tinyurl.com/2021-07-30-fs 
 (and will be deleted after ~3-7 days).\n
LOCATION:https://researchseminars.org/talk/agstanford/54/
END:VEVENT
END:VCALENDAR