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SUMMARY:Soumya Sankar (University of Wisconsin\, Madison)
DTSTART:20200603T190000Z
DTEND:20200603T200000Z
DTSTAMP:20260423T024654Z
UID:etag2020/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/etag2020/2/"
 >Counting elliptic curves with a rational N-isogeny</a>\nby Soumya Sankar 
 (University of Wisconsin\, Madison) as part of Experimental Talks in Algeb
 raic Geometry\n\n\nAbstract\nThe problem of counting elliptic curves over 
 Q with a rational N isogeny can be rephrased as a question of counting rat
 ional points on the moduli stacks X_0(N). In this talk\, I will discuss he
 ights on projective varieties and a generalization to stacks of certain ki
 nds\, based on upcoming work of Ellenberg\, Satriano and Zureick-Brown. We
  will then use this to count points on X_0(N) for low N.  This is joint wo
 rk with Brandon Boggess.\n
LOCATION:https://researchseminars.org/talk/etag2020/2/
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