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SUMMARY:Raymond Cheng (Columbia University)
DTSTART:20201102T210000Z
DTEND:20201102T220000Z
DTSTAMP:20260423T021302Z
UID:AGSAGS/7
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AGSAGS/7/">q
 -bic Hypersurfaces</a>\nby Raymond Cheng (Columbia University) as part of 
 American Graduate Student Algebraic Geometry Seminar\n\n\nAbstract\nOne of
  the funny features of geometry in positive characteristic is that equatio
 ns behave of lower degree than they seem. In this talk\, I would like to c
 onvince you that Fermat hypersurfaces of degree $q + 1$\, $q$ a power of t
 he ground field characteristic\, is geometrically analogous to quadric and
  cubic hypersurfaces. To me\, this example suggests a theme with which to 
 understand some geometric features in positive characteristic\, like the u
 nexpected abundance of rational curves in certain varieties.\n
LOCATION:https://researchseminars.org/talk/AGSAGS/7/
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