BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4//
BEGIN:VEVENT
UID:20251218T072035EST-2306OifWP2@132.216.98.100
DTSTAMP:20251218T122035Z
DESCRIPTION: \n\nTitle: Transgression of the Euler class and arithmetic app
 lications\n\n \n\nAbstract: I will survey recent work (joint with N. Berge
 ron and P. Charollois) giving a new construction of certain cohomology cla
 sses of SL_N(\bbZ) that were first defined by Nori and Szcech. To motivate
  our approach\, I will start by discussing the problem of how to compute l
 inking numbers in certain three-manifolds that fiber over the circle\, e.g
  in the complement of the trefoil knot in the 3-sphere. We will see that t
 hese linking numbers are special values of L-functions\, which implies tha
 t the latter are rational numbers. Then I will explain some generalization
 s that relate the topology of real locally symmetric spaces with the arith
 metic world of modular forms.\n
DTSTART:20190110T210000Z
DTEND:20190110T220000Z
LOCATION:Room 1104\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue
  Sherbrooke Ouest
SUMMARY:Luis Garcia - University of Toronto
URL:/mathstat/channels/event/luis-garcia-university-to
 ronto-292978
END:VEVENT
END:VCALENDAR