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SUMMARY:Joachim Jelisiejew (University of Warsaw)
DTSTART:20211021T120000Z
DTEND:20211021T140000Z
DTSTAMP:20260423T005757Z
UID:AGNTISTA/45
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AGNTISTA/45/
 ">Bialynicki-Birula decompositions old and new</a>\nby Joachim Jelisiejew 
 (University of Warsaw) as part of Algebraic Geometry and Number Theory sem
 inar - ISTA\n\n\nAbstract\nBialynicki-Birula decomposition is a powerful t
 ool for analysing a smooth variety with a torus action. In the talk\, I wi
 ll discuss it and recent developments: the generalization to singular vari
 eties and its applications\, as well as an analogue of BB decomposition fo
 r additive group actions. This last generalization\, which is connected to
  Carrell's rationality conjecture and formal algebraic PDEs\, offers sever
 al open questions.\n
LOCATION:https://researchseminars.org/talk/AGNTISTA/45/
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