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SUMMARY:Alessio Borzì (Warwick)
DTSTART:20220317T100000Z
DTEND:20220317T110000Z
DTSTAMP:20260423T005801Z
UID:notts_ag/94
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/notts_ag/94/
 ">Weierstrass sets on finite graphs</a>\nby Alessio Borzì (Warwick) as pa
 rt of Online Nottingham algebraic geometry seminar\n\n\nAbstract\nWeiestra
 ss points and Weierstrass semigroups are classical objects of study in Alg
 ebraic Geometry. The problem of determining which semigroups arise as Weie
 rstrass semigroups of a curve goes back to Hurwitz in 1893. After the adve
 nt of tropical geometry\, a divisor theory on graphs was developed by Bake
 r and Norine\, and later extended to metric graphs (namely\, abstract trop
 ical curves) by Gathmann and Kerber\, and Mikhalkin and Zharkov. In this t
 alk we present two natural tropical analogues of Weierstrass semigroups on
  graphs\, called rank and functional Weierstrass sets\, first appeared in 
 a work of Kang\, Matthews and Peachey. We present some results on these tw
 o objects and their interplay.\n
LOCATION:https://researchseminars.org/talk/notts_ag/94/
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