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DTSTART;VALUE=DATE:20220523T151500
DTEND;VALUE=DATE:20220523T151500
UID:11392@agenda.unifr.ch
DESCRIPTION:The study of discrete groups acting nicely on spaces satisfying various nonpositive curvature conditions is an active area of research in geometric group theory.  Diverse families of groups have been studied in this context, including CAT(0) groups, cubical groups, hierarchically hyperbolic groups, Helly groups, systolic groups, quadric groups, etc.  In this talk I will discuss the strong shortcut property, a weak nonpositive curvature condition of rough geodesic metric spaces that unifies all of these families of groups and which also includes the Heisenberg group.  I will discuss group theoretic consequences of nice actions on strong shortcut spaces and I will give an asymptotic cone characterization of the strong shortcut property.
SUMMARY:Strong shortcut groups and asymptotic cones
CATEGORIES:Séminaire
LOCATION:PER 08\, auditorium 2.73\, Chemin du Musée 3\, 1700 Fribourg
URL;VALUE=URI:https://agenda.unifr.ch/e/fr/11392
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