English

Antipodal two-weight rank metric codes

Information Theory 2022-08-18 v2 math.IT

Abstract

We consider the class of linear antipodal two-weight rank metric codes and discuss their properties and characterization in terms of tt-spreads. It is shown that the dimension of such codes is 22 and the minimum rank distance is at least half of the length. We construct antipodal two-weight rank metric codes from certain MRD codes. A complete classification of such codes is obtained, when the minimum rank distance is equal to half of the length. As a consequence of our construction of two-weight rank metric codes, we get some explicit two-weight Hamming metric codes.

Keywords

Cite

@article{arxiv.2208.07295,
  title  = {Antipodal two-weight rank metric codes},
  author = {Rakhi Pratihar and Tovohery Hajatiana Randrianarisoa},
  journal= {arXiv preprint arXiv:2208.07295},
  year   = {2022}
}

Comments

17 pages

R2 v1 2026-06-25T01:43:08.169Z