Date: Wed, 15 Nov 1995 13:58:40 -0500 (EST)
From: Evelyn Hart 
Subject: A One-Relator Group

Dear Group Pub Forum:

My research in periodic point theory on the double torus is leading
me into combinatorial algebra.  What is known about the normal subgroups
of the fundamental group of the double torus? (I am really interested
in knowing what the homomorphisms from the group to itself can look
like.)  The group is < a,b,c,d | a*b*a^-1*b^-1*c*d*c^-1*d^-1 >.

Thanks for helping a topologist who likes groups.

Evelyn Hart

% Evelyn Hart                   | W:  315-824-7736 |   %
% Colgate Univ., Dept. of Math. | Fax:315-824-7831 |   %
% 13 Oak Drive                  | H:  315-824-9069 |   %
% Hamilton NY 13346-1398        | ehart@colgate.edu|   %