(1) Groupe de Recherche en Informatique et Mathématiques (GRIM), Université de Toulon-Var, B.P. 132, 83957, La Garde, Cedex, France
Abstract:
There is a classical lower bound on the dimension of a binary Goppa code. We survey results on some specific codes whose dimension exceeds this bound, and prove two conjectures on the true dimension of two classes of such codes.Part of this work has been presented at the Sixth International Conference on Finite Fields and Applications, Oaxaca, Mexico, May 2001.AMS classification: 94B65