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SUMMARY:Elvira Lupoian (University College London)
DTSTART:20250122T160000Z
DTEND:20250122T170000Z
DTSTAMP:20260418T065523Z
UID:LNTS/148
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/LNTS/148/">C
 eresa cycles of modular curves</a>\nby Elvira Lupoian (University College 
 London) as part of London number theory seminar\n\nLecture held in Room 50
 5\, Department of Mathematics (25 Gordon St)\, University College London.\
 n\nAbstract\nThe Ceresa cycle is an algebraic cycle attached to smooth alg
 ebraic curve with a marked point\, which is always homologically trivial. 
 Ceresa proved that for a very general complex curve of genus at least 3\, 
 this cycle is not trivial as an element of the Chow group.  Notably\, hype
 relliptic curves with a Weierstrass point have trivial Ceresa cycle. There
  are few other explicit examples where triviality/non-triviality is known.
  In this talk I will discuss the non-vanishing of the Ceresa cycle attache
 d to the modular curve $X_0(N)$.\n
LOCATION:https://researchseminars.org/talk/LNTS/148/
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