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PRODID:-//Memento EPFL//
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SUMMARY:A Cellular Version of Blakers-Massey
DTSTART:20141010T141500
DTEND:20141010T153000
DTSTAMP:20260916T084548Z
UID:fb0d005e8ac2bb434c8a3e9d414571baafd3e7d333313fa4dd5b5471
CATEGORIES:Conferences - Seminars
DESCRIPTION:Kay Werndli (EPFL)\nStarting from the homotopy pushout D of a 
 diagram B <--- A ---> C\, we measure how far the homotopy pushout square i
 s from being a homotopy pullback by studying the fibre of the comparison m
 ap A ---> P = holim(B ---> D <--- C). The classical Blakers-Massey theorem
  does so by just looking at its connectivity. In 1995\, Wojciech Chachóls
 ki generalised this theorem and put it into a more modern framework by est
 ablishing a cellular inequality between the fibres of A ---> B and A ---> 
 C and the fibre of the suspension of the above-mentioned comparison map. B
 y relaxing the cellular inequality relation\, we are able to lose the susp
 ension and establish a direct relation between the Bousfield classes of th
 e fibres involved. This is joint work with Wojciech Chachólski and Jér
 ôme Scherer.
LOCATION:MA 30
STATUS:CONFIRMED
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