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SUMMARY:Aru Ray (MPIM Bonn\, Germany)
DTSTART:20201023T150000Z
DTEND:20201023T161500Z
DTSTAMP:20260423T005706Z
UID:CIRGET/19
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CIRGET/19/">
 Embedding surfaces in 4-manifolds</a>\nby Aru Ray (MPIM Bonn\, Germany) as
  part of CRM - Séminaire du CIRGET / Géométrie et Topologie\n\n\nAbstra
 ct\nI will present a surface embedding theorem for 4-manifolds with good f
 undamental group in the presence of potentially unframed\, immersed dual s
 pheres. The essential obstruction is the Kervaire-Milnor invariant and a g
 oal of the talk is to describe how it may be computed. This is based on jo
 int work with Daniel Kasprowski\, Mark Powell\, and Peter Teichner.\n
LOCATION:https://researchseminars.org/talk/CIRGET/19/
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