# Jerusalem Mathematics Colloquium

Thursday, 21st January 2010, 4:00 pm

Mathematics Building, Lecture Hall 2

##

Matan Prezma

(Hebrew University)

"Homotopical normal maps"

** Abstract: **

In this talk I'll try to introduce notions involved in my work. The main
idea of the talk will be trying to translate the notion of a normal
subgroup into the homotopical world, invariant under homotopy equivalence.
This is done via converting (topological) groups into loop spaces, short
exact sequences to fibrations and quotients to homotopy quotients. Most of
the time will be devoted to explain these notions and, if time permit, I
will state my result on the matter.

Light refreshments will be served in the faculty lounge at 3:30.

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