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Exotic Spheres 13

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Open to the public, a learning seminar with talks from advanced graduate students.

What
  • Topology Seminar
When Thu, Apr 28, 2016
from 11:00 AM to 12:00 PM
Where 202 Ritter Hall
Contact Name
Attendees rotating presentations by: Chirasree Chatterjee, Sean Corrigan, Gerrit Smith.
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The primary source is the seminal 1963 differential-topology article, "Groups of homotopy spheres," by Michel Kervaire and John Milnor.

Professor Khan will outline Section 7 of the paper.  The goals are to show that P4k is infinite cyclic, detected by signature, and that its image bP4k in Θ4k-1 is finite.  These conclusions depend on deep work of R Bott (Lie groups) and of J F Adams (homotopy theory).

(For continuity, here's a link to the previous talk.)

 

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