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SUMMARY:Kiumars Kaveh (University of Pittsburgh)
DTSTART:20240618T150000Z
DTEND:20240618T160000Z
DTSTAMP:20260423T022720Z
UID:Geolis/148
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/Geolis/148/"
 >A spherical logarithm map</a>\nby Kiumars Kaveh (University of Pittsburgh
 ) as part of Geometria em Lisboa (IST)\n\n\nAbstract\nThe logarithm map fr
 om complex algebraic torus to the Euclidean space\, sends an n-tuple of no
 nzero complex numbers to the logarithms of their absolute values. The imag
 e of a subvariety in the torus under the logarithm map is called  "amoeba"
  and it contains geometric information about the variety. In this talk we 
 explore the extension of the notion of logarithm map and amoeba to the non
 -commutative setting\, that is for a spherical homogeneous space G/H where
  G is a connected complex reductive algebraic group. This is related to Vi
 ctor Batyrev's question of describing K-orbits in G/H.\nThe talk is based 
 on a join work with Victor Batyrev\, Megumi Harada and Johannes Hofscheier
 .\n
LOCATION:https://researchseminars.org/talk/Geolis/148/
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