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SUMMARY:William Duke (UCLA)
DTSTART:20220324T213000Z
DTEND:20220324T223000Z
DTSTAMP:20260423T022835Z
UID:JNTS/40
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/JNTS/40/">On
  a theorem of Legendre</a>\nby William Duke (UCLA) as part of Columbia CUN
 Y NYU number theory seminar\n\n\nAbstract\nI will explain that the primiti
 ve zeros of certain indefinite ternary quadratic forms fall into a single 
 orbit under automorphs of the form.\nOne ingredient in the proof is a char
 acterization and count of classes of zeros of the form consisting primitiv
 e  triples of Gaussian binary quadratic forms\, where triples are acted on
  by the extended modular group.\nAnother is an application of Eisenstein s
 eries for an associated Fuchsian group.\n
LOCATION:https://researchseminars.org/talk/JNTS/40/
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