BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Igor Sikora DTSTART:20231023T103000Z DTEND:20231023T113000Z DTSTAMP:20260422T135607Z UID:BilTop/65 DESCRIPTION:Title: Equivariant contextuality\nby Igor Sikora as part of Bilkent Topology Seminar\n\nLecture held in SB-Z11.\n\nAbstract\nSimplicial quantum context uality\, introduced by Okay\, Kharoof and Ipek\, is a framework for using topological methods based on simplicial sets to study quantum contextualit y. It subsumes earlier approaches - topological (Okay\, Roberts\, Bartlett \, Raussendorf) and sheaf-theoretic (Abramsky\, Brandenburger).\n\nIn this talk we will discuss how group action can be composed into this framework . To this end\, we will use such tools as Borel construction and partial g roups in the sense of Broto-Gonzalez. We will start with the notions of eq uivariant simplicial distributions and equivariant contextuality and conne ct them with the Borel construction. Then we will proceed with the cohomol ogical aspects\, which are based on the extensions of partial groups and c ofibre sequences of simplicial sets.\n\nThe talk is based on a joint work with Cihan Okay\, to appear on arxiv soon.\n LOCATION:https://researchseminars.org/talk/BilTop/65/ END:VEVENT END:VCALENDAR