Séminaires : Séminaire de Logique Lyon-Paris

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Salle : https://bigbluebutton.imj-prg.fr/b/sil-gwg-gge
Adresse :Sophie Germain
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Orateur(s) Michael Hrusak - Universidad Nacional Autónoma de México,
Titre Strong measure zero in Polish groups
Date20/05/2020
Horaire16:00 à 17:15
Diffusion
Résume

We study the extent to which the Galvin-Mycielski-Solovay
characterization of strong measure zero subsets of the real line
extends to arbitrary Polish group. In particular, we show that
an abelian Polish group satisfies the GMS characterization if and only
if it is locally compact. We shall also consider the non-abelian case,
and discuss the use and existence of invariant submeasures on Polish groups.

(joint with W. Wohofsky, J. Zapletal and/or O. Zindulka)
 

Sallehttps://bigbluebutton.imj-prg.fr/b/sil-gwg-gge
AdresseSophie Germain
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