Title: Notes on Codes Invariant Under the Affine Group.

Authors:  Peter Sin
                        Department of Mathematics
                        University of Florida 
                        358 Little Hall
                        PO Box 118105
                        Gainesville, FL 32611-8105 



Abstract.

 Let $k[V]$ be the space of functions from a finite
vector space into the algebraically closure of its field of scalars. 
This paper describes the lattice of subspaces of $k[V]$ which
are invariant under the affine group $\AGL(V)$. The description
provides a simple method for finding the submodule generated by
any set of functions given as polynomials in the standard coordinates.
Preprint Nov. 14, 2002