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SUMMARY:Jan-Willem van Ittersum (University of Cologne)
DTSTART:20240412T130000Z
DTEND:20240412T140000Z
DTSTAMP:20260423T022811Z
UID:TQFT/110
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TQFT/110/">S
 hifted symmetric functions\, quasimodular forms and Hamiltonian operators<
 /a>\nby Jan-Willem van Ittersum (University of Cologne) as part of Topolog
 ical Quantum Field Theory Club (IST\, Lisbon)\n\n\nAbstract\nStarting with
  a counting problem for elements of the symmetric group\, we introduce the
  so-called shifted symmetric functions. These functions\, which also occur
  naturally in enumerative geometry\, have the remarkable property that the
  corresponding generating series are quasimodular forms. We discuss anothe
 r family of functions on partitions with the same property. In particular\
 , using certain Hamiltonian operators associated to cohomological field th
 eories\, we explain how this seemingly different family of functions turns
  out to be closely related to the shifted symmetric functions.\n
LOCATION:https://researchseminars.org/talk/TQFT/110/
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