Hebrew University
 
Amitsur Algebra Seminar
*****************************
 
Time: Thursday, February 17, at 12:00.
Place: room 209, Mathematics building
 
Speaker: Emmanuel Farjoun (HUJI)
 
Title: A homotopy view of normal subgroups.
 
Abstract:
 
Homotopy theory defines for each group homomorphism
G--->H the Borel quotient, H//G, a certain canonical topological
orbit space quotient used in Borel's equivarient cohomology.
 
This raises the question of possible
topological group structures on this Borel quotient H//G, which leads to
a homotopy notion of normal subgroups N--->G.
 
Certain well-known canonical central extensions E--->G are always normal
in this sense. We shall try to classify them and discuss appliations
of this extension of normalty. (Join work with Y. Segev.)
 
You are cordially invited!
 
 <http://math.huji.ac.il/amitsur.html>
 
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Technion Math Net-2 (TECHMATH2)
Editor: Michael Cwikel   <techm@math.technion.ac.il> 
Announcement from: Gili Schul   <gili.schul@mail.huji.ac.il>