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SUMMARY:Ilke Canakci (Vrije Universiteit Amsterdam)
DTSTART:20210421T121500Z
DTEND:20210421T133000Z
DTSTAMP:20260423T040007Z
UID:AarHomAlg/4
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AarHomAlg/4/
 ">Infinite friezes</a>\nby Ilke Canakci (Vrije Universiteit Amsterdam) as 
 part of Aarhus Homological Algebra Seminar\n\n\nAbstract\nFrieze patterns\
 , introduced by Coxeter\, are infinite arrays of numbers where neighbourin
 g numbers satisfy a local arithmetic rule. Under a certain finiteness assu
 mption\, they are in one-to-one correspondence with triangulations of poly
 gons [Conway–Coxeter] and they come from triangulations of annuli in an 
 infinite setting [Baur–Parsons–Tschabold]. In this talk\, we will disc
 uss a relationship between pairs of infinite friezes associated with a tri
 angulation of the annulus and explore how one determines the other in an e
 ssentially unique way. We will also consider module categories associated 
 with triangulated annuli where infinite friezes may be recovered using a h
 omological formula. This is joint work with Karin Baur\, Karin Jacobsen\, 
 Maitreyee Kulkarni\, and Gordana Todorov.\n
LOCATION:https://researchseminars.org/talk/AarHomAlg/4/
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