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DTSTART:20250309T070000
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URL:https://uwaterloo.ca/pure-mathematics/events/differential-geometry-work
 ing-seminar-136
SUMMARY:Differential Geometry Working Seminar
CLASS:PUBLIC
DESCRIPTION:KAIN DINEEN\, UNIVERSITY OF WATERLOO\n\nSymplectic Capacities a
 nd Rigidity\n\nAs an application of Gromov's non-squeezing theorem\, we'll
  prove that\nthe symplectomorphisms (and anti-symplectomorphisms) of (ℝ^
 2m\,\n𝜔_0) are exactly the diffeomorphisms that additionally preserve t
 he\ncapacity of every compact ellipsoid. If time permits\, then we will us
 e\nthis to prove that if a sequence of symplectomorphisms of any\nsymplect
 ic manifold (M\, 𝜔) converges in the C^0-sense to a\ndiffeomorphism 
 𝜓\, then 𝜓*𝜔 = ± 𝜔.\n\nMC 5479
DTSTAMP:20260503T192451Z
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