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X-FROM-URL:https://eom.sdu.dk/events/ical/a2e9c98b-1e73-4573-ba3e-47590355
 147c
X-WR-CALNAME:QM Research Seminar: Stability conditions on free abelian quo
 tients
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TZID:Europe/Copenhagen
X-LIC-LOCATION:Europe/Copenhagen
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DTSTAMP:20260602T163153Z
DTSTART:20261028T030000
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DTSTART:20260325T020000
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DESCRIPTION:[b]Speaker: Hannah Dell [/b] (University of Edinburgh) [nl]\n[
 b]Abstract:[/b][nl]\nThe space of Bridgeland stability conditions on a gi
 ven triangulated category is a complex manifold\, which gives us a way to
  extract geometry from homological algebra. An explicit description is on
 ly known in a few cases. In this talk\, I will discuss two approaches to 
 studying stability conditions on derived categories of surfaces that are 
 free quotients by finite abelian groups. One method is via Le Potier func
 tions\, which characterise the existence of slope-semistable sheaves. The
  second method uses Deligne’s notion of group actions on triangulated cat
 egories to describe a connected component of so-called geometric stabilit
 y conditions inside the stability manifold of these free abelian quotient
 s when the cover has finite Albanese morphism. A consequence of this is a
  disproof of the expectation that surfaces with irregularity 0 always adm
 it a wall of the geometric chamber. This is based on arXiv:2307.00815.\n[
 nl]
DTEND:20231016T140000Z
DTSTAMP:20260602T163153Z
DTSTART:20231016T130000Z
LOCATION:Syddansk Universitet\, Campusvej 55\, 5230\, Odense M
SEQUENCE:0
SUMMARY:QM Research Seminar: Stability conditions on free abelian quotients
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