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SUMMARY:Hannah Larson (Stanford University)
DTSTART:20220125T170000Z
DTEND:20220125T180000Z
DTSTAMP:20260423T053047Z
UID:ZAG/180
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/ZAG/180/">Th
 e rational Chow rings of M_7\, M_8\, and M_9</a>\nby Hannah Larson (Stanfo
 rd University) as part of ZAG (Zoom Algebraic Geometry) seminar\n\n\nAbstr
 act\nThe rational Chow ring of the moduli space M_g of curves of genus g i
 s known for g up to 6. In each of these cases\, the Chow ring is tautologi
 cal (generated by certain natural classes known as kappa classes). In join
 t work with Sam Canning\, we prove that the rational Chow ring of M_g is t
 autological for g = 7\, 8\, 9\, thereby determining the Chow rings by earl
 ier work of Faber. In this talk\, I will give an overview of our approach\
 , with particular focus on the locus of tetragonal curves (special curves 
 admitting a degree 4 map to P^1).\n
LOCATION:https://researchseminars.org/talk/ZAG/180/
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