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SUMMARY:The size of conjugacy classes of automorphism groups - Vidnynszky\
 , Z (Alfrd Rnyi Institute of Mathematics)
DTSTART:20150828T130000Z
DTEND:20150828T133000Z
UID:TALK60498@talks.cam.ac.uk
CONTACT:42080
DESCRIPTION:The automorphism groups of Fraiss limits are usually interesti
 ng objects both from group theoretic and set theoretic viewpoint. However\
 , these groups are often non-locally compact\, hence there is no natural t
 ranslation invariant measure on them.\nChristensen introduced the notion o
 f Haar null sets in non-locally compact Polish groups which is a well-beha
 ved generalisation of the null ideal to such groups.\nIn my talk I will pr
 esent some new results concerning the size of the conjugacy classes of aut
 omorphism groups of Fraisse limits with respect to this notion.\n
LOCATION:Seminar Room 1\, Newton Institute
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