English

Two classes of constacyclic codes with a square-root-like lower bound

Information Theory 2024-04-30 v1 math.IT

Abstract

Constacyclic codes over finite fields are an important class of linear codes as they contain distance-optimal codes and linear codes with best known parameters. They are interesting in theory and practice, as they have the constacyclic structure. In this paper, an infinite class of qq-ary negacyclic codes of length (qm1)/2(q^m-1)/2 and an infinite class of qq-ary constacyclic codes of length (qm1)/(q1)(q^m-1)/(q-1) are constructed and analyzed. As a by-product, two infinite classes of ternary negacyclic self-dual codes with a square-root-like lower bound on their minimum distances are presented.

Keywords

Cite

@article{arxiv.2404.18438,
  title  = {Two classes of constacyclic codes with a square-root-like lower bound},
  author = {Tingfang Chen and Zhonghua Sun and Conghui Xie and Hao Chen and Cunsheng Ding},
  journal= {arXiv preprint arXiv:2404.18438},
  year   = {2024}
}
R2 v1 2026-06-28T16:09:19.491Z