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UID:2020021901464520200218T15000020200218T1550005e4c9385dbe3b@uic.edu
CATEGORIES:MEETING
STATUS:TENTATIVE
DTSTAMP:20200218T050406
DTSTART:20200218T150000
DTEND:20200218T155000
SUMMARY:Logic Seminar: Borel structures on the space of left-orderings, by Filippo Calderoni
DESCRIPTION:Filippo Calderoni (UIC): Borel structures on the space of left-orderings In this work we address a question of Deroin, Navas, and Rivas. We discuss how descriptive set theory can be used to find many examples of countable left-orderable groups such that the quotient space \(\mathrm{LO}(G)/G\) is not standard. Moreover, we prove that the countable Borel equivalence relation induced from the conjugacy action of \(\mathbb{F}_{2}\) on \(\mathrm{LO}(\mathbb{F}_{2})\) is universal. This is joint work with Adam Clay. Please click here to make changes to, or delete, this seminar announcement.
LOCATION:427 SEO Chicago IL
CLASS:PRIVATE
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