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SUMMARY:On the deformation theory of discontinuous groups acting on solvab
le homogeneous spaces
DTSTART;VALUE=DATE-TIME:20181015T083000Z
DTEND;VALUE=DATE-TIME:20181015T093000Z
DTSTAMP;VALUE=DATE-TIME:20201025T155333Z
UID:indico-event-3969@indico.math.cnrs.fr
DESCRIPTION:Let $G$ be a Lie group\, $H$ a closed subgroup of $G$ and $\\G
amma$ a discontinuous group for the homogeneous space $\\mathscr{X}=G/H$
\, which means that $\\Gamma$ is a discrete subgroup of $G$ acting properl
y discontinuously and fixed point freely on $\\mathscr{X}$. The subject of
the talk is to to deal with some questions related to the geometry of the
parameter and the deformation spaces of the action of $\\Gamma$ on $\\m
athscr{X}$\, when the group $G$ is solvable. The local rigidity conjecture
in the nilpotent case and the analogue of the Selberg-Weil-Kobayashi ri
gidity Theorem in such non-Riemannian setting is also discussed.\n\nhttps:
//indico.math.cnrs.fr/event/3969/
LOCATION:IHES Amphithéâtre Léon Motchane
URL:https://indico.math.cnrs.fr/event/3969/
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