KolloquiumGRK Profinite properties of lattices in Lie groups |  |
Speaker:Holger Kammeyer, Karlsruher Institut für Technologie
Organizer:Fakultät für Mathematik und Informatik
Details:
Which invariants of a group are profinite in the sense that they are
already determined by the set of the finite quotient groups? This
question has gained a lot of attention in recent years and it is
particularly intriguing for discrete subgroups of semisimple Lie groups
with cofinite Haar measure. In this talk, we will report on recent
progress in the field with a special view towards L²-cohomological
invariants. We will see that some of these invariants are profinite
while others are not and we will draw geometric conclusions on the
Euler characteristic of the associated locally symmetric spaces.
already determined by the set of the finite quotient groups? This
question has gained a lot of attention in recent years and it is
particularly intriguing for discrete subgroups of semisimple Lie groups
with cofinite Haar measure. In this talk, we will report on recent
progress in the field with a special view towards L²-cohomological
invariants. We will see that some of these invariants are profinite
while others are not and we will draw geometric conclusions on the
Euler characteristic of the associated locally symmetric spaces.
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Type:Colloquium
Language:English
Category:Research
Host:Prof. Dr. Thomas Schick
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Direct link to event:https://events.goettingen-campus.de/event?eventId=20051
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