English

Generalization of trace codes to places of higher degree

Information Theory 2021-04-15 v3 Algebraic Geometry math.IT

Abstract

In this note, we give a construction of codes on algebraic function field F/FqF/ \mathbb{F}_{q} using places of FF (not necessarily of degree one) and trace functions from various extensions of Fq\mathbb{F}_{q}. This is a generalization of trace code of geometric Goppa codes to higher degree places. We compute a bound on the dimension of this code. Furthermore, we give a condition under which we get exact dimension of the code. We also determine a bound on the minimum distance of this code in terms of Br(F)B_{r}(F) ( the number of places of degree rr in FF), 1r<1 \leq r < \infty. Few quasi-cyclic codes over Fp\mathbb{F}_{p} are also obtained as examples of these codes.

Keywords

Cite

@article{arxiv.2003.00145,
  title  = {Generalization of trace codes to places of higher degree},
  author = {Nupur Patanker and Sanjay Kumar Singh},
  journal= {arXiv preprint arXiv:2003.00145},
  year   = {2021}
}

Comments

Due to error in Section 6 on the dimension of codes