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SUMMARY:The diffeomorphism group of a 3-manifold fixing a disk - Corey  Br
 egman (Tufts University)
DTSTART:20240605T083000Z
DTEND:20240605T091500Z
UID:TALK217222@talks.cam.ac.uk
DESCRIPTION:I will discuss joint work with Rachael Boyd and Jan Steinebrun
 ner in which we study the diffeomorphisms of a closed\, irreducible\, orie
 ntable 3-manifold which fix a disk pointwise. We show that the classifying
  space of this group has the homotopy type of finite complex. This result 
 forms an important base case of our more general result that if M is an or
 ientable 3-manifold with nonempty boundary\, then the classifying space of
  the diffeomorphism group of M fixing the boundary pointwise is homotopy f
 inite.
LOCATION:External
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