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TZID:Asia/Jerusalem
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DTSTART:20161030T020000
TZOFFSETFROM:+0300
TZOFFSETTO:+0200
TZNAME:IST
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BEGIN:DAYLIGHT
DTSTART:20170324T020000
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TZOFFSETTO:+0300
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BEGIN:VEVENT
UID:calendar.50418.field_date.0@mathematics.huji.ac.il
DTSTAMP:20200528T074353Z
CREATED:20180109T060001Z
DESCRIPTION:Date: \n\n2:30pm to 3:30pm\n\n\n\n\nSee also: Events & Semina
rs\, ColloquiumLocation: \n\nManchester Building (Hall 2)\, Hebrew Univers
ity Jerusalem\n\n\nAbstract: Given two permutations A and B which 'almost'
commute\, are they 'close' to permutations A' and B' which really commute
? This can be seen as a question about a property the equation XY=YX.\nStu
dying analogous problems for more general equations (or sets of equations)
leads to the notion of 'locally testable groups' (aka 'stable groups').\n
We will take the opportunity to say something about 'local testability' in
general\, which is an important subject in computer science. We will then
describe some results and methods developed (in a work in progress)\, tog
ether with Alex Lubotzky\, to decide whether various groups are locally te
stable or not.\nThis will bring in some important notions in group theory\
, such as amenability\, Kazhdan's Property (T) and sofic groups.\n\n Expo
rt\n \n\n \nsubscribe iCal
DTSTART;TZID=Asia/Jerusalem:20170316T143000
DTEND;TZID=Asia/Jerusalem:20170316T153000
LAST-MODIFIED:20191104T000009Z
SUMMARY:Colloquium: Oren Becker (HUJI) Tzafriri Prize Lecture 'Equations in
permutations and group theoretic local testability'
URL;TYPE=URI:https://mathematics.huji.ac.il/event/colloquium-oren-becker-hu
ji-tzafriri-prize-lecture-equations-permutations-and-group-theoretic
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