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SUMMARY:Martin Kerin (NUI Galway)
DTSTART:20200730T180000Z
DTEND:20200730T190000Z
DTSTAMP:20260423T035936Z
UID:VSGS/7
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/VSGS/7/">A p
 ot-pourri of non-negatively curved 7-manifolds</a>\nby Martin Kerin (NUI G
 alway) as part of Virtual seminar on geometry with symmetries\n\n\nAbstrac
 t\nManifolds with non-negative sectional curvature are rare and difficult 
 to find\, with interesting topological phenomena traditionally being restr
 icted by a dearth of methods of construction.  In this talk\, I will descr
 ibe a large family of seven-dimensional manifolds with non-negative curvat
 ure\, leading to examples of exotic diffeomorphism types\, non-standard ho
 motopy types and fake versions of familiar friends. This is based on joint
  work with Sebastian Goette and Krishnan Shankar.\n\nMartin Kerin's talk w
 as originally announced on July 15th\, but it had to be canceled by techni
 cal reasons. The current talk is hosted in CUNY Geometric Analysis Seminar
 \, and co-sponsored by the Virtual seminar of geometry with symmetries.\n
LOCATION:https://researchseminars.org/talk/VSGS/7/
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