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SUMMARY:Ian Agol (UC Berkeley)
DTSTART:20200428T153000Z
DTEND:20200428T160000Z
DTSTAMP:20260423T003241Z
UID:GaTO/1
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GaTO/1/">Vir
 tually algebraically fibered congruence subgroups</a>\nby Ian Agol (UC Ber
 keley) as part of Geometry and topology online\n\nLecture held in N/A.\n\n
 Abstract\nAddressing a question of Baker and Reid\, we give a criterion to
  show that an arithmetic group has a congruence subgroup that is algebraic
 ally fibered. Some examples to which the criterion applies include: a hype
 rbolic four-manifold group containing infinitely many Bianchi groups and a
  complex hyperbolic surface group.\n\nThis is joint work with Matthew Stov
 er.\n
LOCATION:https://researchseminars.org/talk/GaTO/1/
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