This colloquium has been postponed, to a later date, TBA.
Colloquium
3:30 p.m., Friday
Math 100
Professor Akbar Rhemtulla
University of Alberta
Residually Finite Groups
A group G is called Residually Finite if there is a set \{K_i ; \ i
\in I \} of normal subgroups of G such that each K_i is of finite
index in G and \cap K_i = 1. In other words, there is a system of
homomorphisms \psi_{i} : \ G \rightarrow G_{i} , \ \ i \in I, where
each G_i is finite and for each g \not= 1 in G, \psi_i(g) \not= 1 for some i.
In many respects residually finite groups are well behaved and that is
the theme of this talk.
Refreshments will be served in Math Annex Room 1115, 3:15 p.m.
