PARAMETER RESTRICTIONS IN A NONCOMMUTATIVE GEOMETRY MODEL DO NOT SURVIVE STANDARD QUANTUM CORRECTIONS

We have investigated the standard one-loop quantum corrections for a p articularly simple non-commutative geometry model containing fermions interacting with a unique abelian gauge field and a unique scalar thro ugh Yukawa couplings. In this model there are certain relations among the different coupling constants quite similar to the ones appearing i n the Connes-Lott version of the standard model. We find that it is no t possible to implement those relations in a renormalization-group inv ariant way.