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DTSTAMP:20260831T222700Z
DESCRIPTION:✒️ TITLE / TITRE\n\nOn the spectral diameter of the complex Gra
 ssmannian of two-planes\n\n📄  ABSTRACT / RÉSUMÉ \n\nIt is well-known that 
 to any compact symplectic manifold one can associate a 'spectral' pseudome
 tric $\gamma$ on the universal cover of the Hamiltonian diffeomorphism gro
 up using Floer theory. I will begin my presentation with a historical over
 view of this pseudometric\, and will describe its applications. A central 
 question in this subject is whether or not $\gamma$ has finite diameter\, 
 for a given symplectic manifold. In my presentation\, I will explain recen
 t work (joint with H. Alizadeh\, M. S. Atallah\, J. Shang) which shows the
  diameter is finite in the case of the complex Grassmannian of two planes 
 $Gr(2\,n)$\, provided that $n$ is a prime number. The proof involves a det
 our through the quantum Schubert calculus.\n\n📍 PLACE / LIEU \n	Hybride - C
 RM\, Salle / Room 5340\, Pavillon André Aisenstadt\n\nLien ZOOM Link\n
DTSTART:20251128T203000Z
DTEND:20251128T213000Z
SUMMARY:Dylan Cant (Université de Montréal)
URL:https://www.mcgill.ca/mathstat/channels/event/dylan-cant-universite-de-
 montreal-369296
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