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SUMMARY:Group actions on exotic spheres - J.D. Quigley (University of Virg
 inia)
DTSTART:20250516T091500Z
DTEND:20250516T101500Z
UID:TALK230557@talks.cam.ac.uk
DESCRIPTION:An exotic sphere is a smooth manifold which is homeomorphic\, 
 but not diffeomorphic\, to a sphere with its standard smooth structure. Th
 ere are many exotic spheres\, but relatively little is known about their g
 eometry (e.g.\, smooth transformation groups\, curvature). I will describe
  some recent results detecting smooth rotational symmetries of exotic sphe
 res using stable homotopy theory (joint work with Boris Botvinnik and work
 s in progress with Tilman Bauer and Oliver Wang).&nbsp\;
LOCATION:Seminar Room 1\, Newton Institute
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