Seminar series
Date
Mon, 04 May 2020
15:45
15:45
Location
Virtual
Speaker
Ian Agol
Organisation
UC Berkeley
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 4-manifold group containing infinitely
many Bianchi groups, and a complex hyperbolic surface group.
This is joint work with Matthew Stover.