Agenda dicembre 2016

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venerdì 2
dalle 14:30 alle 15:30

On the complexity of embeddability between groups

Filippo Calderoni
Università di Torino

ABSTRACT: After a gentle introduction to the theory of Borel reducibility, we present some recent results about the complexity of quasi-orders between groups: we exploit the main techniques developed by Camerlo-Marcone-Motto Ros to show that the embeddability between countable groups and the topological embeddability between Polish groups are invariantly universal quasi-orders. In so doing, we strengthen a result obtained by Williams and a result by Ferenczi-Louveau-Rosendal.
Further, if time permits, we discuss a work in progress on the complexity of the embeddability between groups of uncountable size.

Quando

  • 02/12/2016 dalle 14:30 alle 15:30

Organizzato da

Dipartimento di Scienze matematiche, informatiche e fisiche

Dove

Sala Riunioni DIMA, Dipartimento di Scienze Matematiche, Informatiche e Fisiche – Via delle Scienze 206, Udine

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