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SUMMARY:Tobias Dyckerhoff (University of Hamburg\, Germany)
DTSTART:20211118T120000Z
DTEND:20211118T130000Z
DTSTAMP:20260423T022932Z
UID:LAGOON/53
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/LAGOON/53/">
 Perverse sheaves and schobers on Riemann surfaces</a>\nby Tobias Dyckerhof
 f (University of Hamburg\, Germany) as part of Longitudinal Algebra and Ge
 ometry Open ONline Seminar (LAGOON)\n\n\nAbstract\nReporting on joint work
  with M. Kapranov\, V. Schechtman\, and Y. Soibelman\, I will explain how 
 to describe the derived constructible category of a stratified Riemann sur
 face as representations of the so-called paracyclic category of the surfac
 e. This allows for geometric depictions of the various t-structures of int
 erest (including the perverse one) and their interplay with Verdier dualit
 y. We will then discuss how this leads to an approach to categorified perv
 erse sheaves (perverse schobers) and provide some examples.\n\nZoom link: 
 https://icms-org-uk.zoom.us/j/81601767022?pwd=dDZwV1dEeW1STUZkOTUwTlNiVmZo
 dz09 Meeting ID: 816 0176 7022 Passcode: LAGOON\n
LOCATION:https://researchseminars.org/talk/LAGOON/53/
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