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SUMMARY:Sieve methods in group theory - Alex Lubotzky (Hebrew University)
DTSTART:20110427T153000Z
DTEND:20110427T163000Z
UID:TALK30350@talks.cam.ac.uk
CONTACT:Jan Saxl
DESCRIPTION:The sieve methods are classical methods in number theory.\nIns
 pired by the 'affine sieve method' developed by Sarnak\, Bourgain\, Gambur
 d and others\, as well as by works of Rivin and Kowalsky\, we develop\nin 
 a systemtic way a 'sieve method' for group theory. This method is especial
 ly useful for groups with 'property tau'. Hence the recent results\nof Bre
 uillard-Green-Tao\, Pyber-Szabo\, Varju and  Salehi-Golsefidy are very use
 ful and enable one to apply them for linear groups.\n We will present the 
 method and some of its applications to linear groups and to the mapping cl
 ass groups.\n (Joint work with Chen Meiri).\n
LOCATION:MR12
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