Virtually algebraically fibered congruence subgroups

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

( paper | slides | video )

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Geometry and topology online

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 at 13:30. Talks are typically fifty minutes long, with ten minutes for questions.

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