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alvarezpaiva
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Poincaré recurrence and symplectic packings

Is there any example of a symplectic manifold that has infinite volume, but which cannot be packed by an infinite number of symplectic balls of a fixed radius $r$, for any $r > 0$ ?

Note that on such a manifold we would be able to prove the "Poincaré recurrence" of every symplectomorphism.

alvarezpaiva
  • 13.5k
  • 40
  • 83