We study the geometrical properties of the subgroups of the multiplicative group of a finite extension of a finite field endowed with its vector space structure, and we show that in some cases the associated projective space has a natural groupe structure. We construct some cyclic codes related to Reed-Muller codes by evaluating polynomials on these subgroups. The geometrical properties of these groups give a fairly simple description of these codes of the Reed-Muller kind.
@article{hal-00770256,
author = {Lachaud, Gilles and Lucien, Isabelle and Mercier, Dany-Jack and Rolland, Robert},
title = {Group structure on projective spaces and cyclic codes over finite fields},
journal = {HAL},
volume = {2000},
number = {0},
year = {2000},
language = {en},
url = {http://dml.mathdoc.fr/item/hal-00770256}
}
Lachaud, Gilles; Lucien, Isabelle; Mercier, Dany-Jack; Rolland, Robert. Group structure on projective spaces and cyclic codes over finite fields. HAL, Tome 2000 (2000) no. 0, . http://gdmltest.u-ga.fr/item/hal-00770256/