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SUMMARY:Ageu Barbosa (UFPB)
DTSTART:20201021T183000Z
DTEND:20201021T200000Z
DTSTAMP:20260423T021649Z
UID:BRAG/29
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/BRAG/29/">On
  $(h\,s)$-tangential weak defectiveness and identifiability of some projec
 tive varieties</a>\nby Ageu Barbosa (UFPB) as part of Brazilian algebraic 
 geometry seminar\n\n\nAbstract\nIn this talk\, I will present a new techni
 que to study the problem of weak defectiveness using degenerations of tang
 ent linear spaces to osculating linear spaces. I also will present a resul
 t on tangential weak defectiveness for varieties admitting a fibration wit
 h a linearly embedded $\\mathbb{P}^1$ as general fiber and apply it to obt
 ain a sharp asymptotic bound for non secant defectiveness of Segre varieti
 es.\n
LOCATION:https://researchseminars.org/talk/BRAG/29/
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