Virtually algebraically fibered congruence subgroups
Ian Agol (UC Berkeley)
Abstract: Addressing a question of Baker and Reid, we give a criterion to show that an arithmetic group has a congruence subgroup that is algebraically fibered. Some examples to which the criterion applies include: a hyperbolic four-manifold group containing infinitely many Bianchi groups and a complex hyperbolic surface group.
This is joint work with Matthew Stover.
algebraic topologydifferential geometrydynamical systemsgroup theorygeometric topologysymplectic geometry
Audience: researchers in the topic
Series comments: You can also find up-to-date information on the seminar homepage - warwick.ac.uk/fac/sci/maths/research/events/seminars/areas/geomtop/
The talks start five minutes after the hour. Talks are typically 55 minutes long, including time for questions.
Organizers: | Saul Schleimer*, Robert Kropholler* |
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