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SUMMARY:Ioannis Chrysikos
DTSTART:20211130T133000Z
DTEND:20211130T143000Z
DTSTAMP:20260423T024446Z
UID:GeoSem/32
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GeoSem/32/">
 Almost hypercomplex/quaternionic skew-Hermitian structures</a>\nby Ioannis
  Chrysikos as part of Geometry Seminar - University of Florence\n\n\nAbstr
 act\nThis talk provides a short introduction to the  differential geometry
  of  4n-dimensional manifolds admitting \na SO*(2n)-structure\, or a SO*(2
 n)Sp(1)-structure\, where SO*(2n) denotes the quaternionic real form of SO
 (2n\, C).  \nSuch G-structures form the symplectic analog of the well-know
 n almost hypercomplex/quaternionic Hermitian structures\,  and we call the
 m  almost hypercomplex/quaternionic skew-Hermitian structures\, respective
 ly.  \nWe describe the basic data encoding such  geometric structures\, an
 d then we focus on their intrinsic torsion and related 1st-order integrabi
 lity conditions. Some examples and classification examples will be also di
 scusssed.\nThis talk is based on a joint work with J. Gregorovič (UHK) an
 d H. Winther (Masaryk).\n
LOCATION:https://researchseminars.org/talk/GeoSem/32/
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