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SUMMARY:Renato Vianna (Rio de Janeiro)
DTSTART:20210621T010000Z
DTEND:20210621T020000Z
DTSTAMP:20260423T005738Z
UID:IBSCGP/11
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/IBSCGP/11/">
 Sharp Ellipsoid Embeddings and Toric Mutations</a>\nby Renato Vianna (Rio 
 de Janeiro) as part of IBS-CGP weekly zoom seminar\n\n\nAbstract\nWe will 
 show how to construct volume filling ellipsoid embeddings in some 4-dimens
 ional toric domain using mutation of almost toric compactification of thos
 e. In particular we recover the results of McDuff-Schlenk for the ball\, F
 enkel-Müller for the product of symplectic disks and Cristofaro-Gardiner 
 for E(2\,3)\, giving a more explicit geometric perspective for these resul
 ts. To be able to represent certain divisors\, we develop the idea of symp
 lectic tropical curves in almost toric fibrations\, inspired by Mikhalkin'
 s work for tropical curves. This is joint work with Roger Casals.\nObs: Th
 e same result appears in "On infinite staircases in toric symplectic four-
 manifolds"\, by Cristofaro-Gardiner -- Holm -- Mandini -- Pires. Both pape
 rs were posted simultaneously on arXiv.\n
LOCATION:https://researchseminars.org/talk/IBSCGP/11/
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