BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:On finitarily approximable groups - Andreas Thom (Technische Unive
 rsität Dresden)
DTSTART:20170508T133000Z
DTEND:20170508T143000Z
UID:TALK72374@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:Starting with the work of Gromov on Gottschalk&rsquo\;s Surjun
 ctivity Conjecture\, the class of sofic groups has attracted much interest
  in various areas of mathematics. Major applications of this notion arose 
 in the work Elek and Szabo on Kaplansky&rsquo\;s Direct Finiteness Conject
 ure\, L&uuml\;ck&rsquo\;s Determinant Conjecture\, and more recently in jo
 int work with Klyachko on generalizations of the Kervaire-Laudenbach Conje
 cture and Howie&rsquo\;s Conjecture. Despite considerable effort\, no non-
 sofic group has been found so far. In view of this situation\, attempts ha
 ve been made to provide variations of the problem that might be more appro
 achable. Using the seminal work of Nikolov-Segal\, we prove that the topol
 ogical group SO(3) is not weakly sofic and describe the class of discrete 
 groups that is approximable by finite solvable groups. (This is joint work
  with Jakob Schneider and Nikolay Nikolov.)<br>
LOCATION:Seminar Room 1\, Newton Institute
END:VEVENT
END:VCALENDAR