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SUMMARY:Tight contact structures on connected sums need not be contact con
 nected sums - Chris Wendl\, UCL
DTSTART:20151125T160000Z
DTEND:20151125T170000Z
UID:TALK60252@talks.cam.ac.uk
CONTACT:Ivan Smith
DESCRIPTION:In dimension three\, convex surface theory implies that every 
 tight contact\nstructure on a connected sum M # N can be constructed as a 
 connected sum\nof tight contact structures on M and N. I will explain some
  examples\nshowing that this is not true in any dimension greater than thr
 ee.  The\nproof is based on a recent higher-dimensional version of a class
 ic result\nof Eliashberg about the symplectic fillings of contact manifold
 s obtained\nby subcritical surgery. This is joint work with Paolo Ghiggini
  and Klaus\nNiederkrüger.
LOCATION:MR13
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