English

On some invariants in numerical semigroups and estimations of the order bound

Information Theory 2010-02-10 v1 Discrete Mathematics Commutative Algebra math.IT

Abstract

We study suitable parameters and relations in a numerical semigroup S. When S is the Weierstrass semigroup at a rational point P of a projective curve C, we evaluate the Feng-Rao order bound of the associated family of Goppa codes. Further we conjecture that the order bound is always greater than a fixed value easily deduced from the parameters of the semigroup: we also prove this inequality in several cases.

Keywords

Cite

@article{arxiv.1002.1744,
  title  = {On some invariants in numerical semigroups and estimations of the order bound},
  author = {Anna Oneto and Grazia Tamone},
  journal= {arXiv preprint arXiv:1002.1744},
  year   = {2010}
}