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DTSTART:20181028T020000
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DTSTART:20180323T020000
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UID:calendar.60376.field_date.0@mathematics.huji.ac.il
DTSTAMP:20190918T153153Z
CREATED:20180621T220023Z
DESCRIPTION:Date: \n\n10:00am to 11:00am\n\n\n\n\nSee also: Amitsur Algeb
ra\, Events & Seminars\, SeminarsLocation: \n\nManchester House\, Lecture
Hall 2\n\n\nThe family of high rank arithmetic groups is a class of groups
playing an important role in various areas of mathematics. \n It includ
es SL(n\,Z)\, for n>2 \, SL(n\, Z[1/p] ) for n>1\, their finite index su
bgroups and many more. \nA number of remarkable results about them have b
een proven including\; Mostow rigidity\, Margulis Super rigidity and the
Quasi-isometric rigidity. \nWe will talk about a new type of rigidity : '
first order rigidity'. Namely if G is such a non-uniform characteristic
zero arithmetic group and H a finitely generated group which is element
ary equivalent to it then H is isomorphic to G. \n\nThis stands in contra
st with Zlil Sela's seminal work which implies that the free groups\, sur
face groups and hyperbolic groups (many of which are low-rank arithmetic
groups) have many non isomorphic finitely generated groups which are elem
entary equivalent to them. Joint work with Nir Avni and Chen Meiri.\n\n
Export\n \n\n \nsubscribe iCal
DTSTART;TZID=Asia/Jerusalem:20180626T100000
DTEND;TZID=Asia/Jerusalem:20180626T110000
LAST-MODIFIED:20180621T220023Z
SUMMARY:Amitsur Symposium: Alex Lubotzky - 'First order rigidity of high-ra
nk arithmetic groups'
URL;TYPE=URI:https://mathematics.huji.ac.il/event/amitsur-symposium-alex-lu
botzky-first-order-rigidity-high-rank-arithmetic-groups
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