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SUMMARY:Martin Pinsonnault (University of Western Ontario)
DTSTART:20231017T150000Z
DTEND:20231017T160000Z
DTSTAMP:20260423T022714Z
UID:Geolis/127
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/Geolis/127/"
 >Embeddings of symplectic balls in $\\mathbb{C}P^2$ and configuration spac
 es</a>\nby Martin Pinsonnault (University of Western Ontario) as part of G
 eometria em Lisboa (IST)\n\n\nAbstract\nExistence of symplectic embeddings
  of $k$ disjoint balls of given capacites $c_1\,\\ldots\, c_k$ into a give
 n symplectic manifold is a central problem in symplectic topology. However
 \, beside a few examples\, very little is known about the space of all suc
 h embeddings. In this talk\, I will discuss the case of rational $4$-manif
 olds of small Euler numbers\, with a special attention to the minimal mani
 folds $\\mathbb{C}P^2$ and $S^2\\times S^2$. For rational manifolds\, a ve
 ry rich and intricate picture emerges that blends symplectic topology\, co
 mplex geometry\, and algebraic topology.\n
LOCATION:https://researchseminars.org/talk/Geolis/127/
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