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Constructions of non-Generalized Reed-Solomon MDS codes

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arxiv 2412.08391 v1 pith:T72IRLWB submitted 2024-12-11 cs.IT math.IT

Shengwei Liu , Hongwei Liu , Frederique Oggier This is my paper · ORCID
classification cs.ITmath.IT
keywords codesreed-solomonnon-generalizedgeneralizeddistanceexamplesfamiliesthen
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Generalized Reed-Solomon codes form the most prominent class of maximum distance separable (MDS) codes, codes that are optimal in the sense that their minimum distance cannot be improved for a given length and code size. The study of codes that are MDS yet not generalized Reed-Solomon codes, called non-generalized Reed-Solomon MDS codes, started with the work by Roth and Lemple (1989), where the first examples where exhibited. It then gained traction thanks to the work by Beelen (2017), who introduced twisted Reed-Solomon codes, and showed that families of such codes are non-generalized Reed-Solomon MDS codes. Finding non-generalized Reed-Solomon MDS codes is naturally motivated by the classification of MDS codes. In this paper, we provide a generic construction of MDS codes, yielding infinitely many examples. We then explicit families of non-generalized Reed-Solomon MDS codes. Finally we position some of the proposed codes with respect to generalized twisted Reed-Solomon codes, and provide new view points on this family of codes.

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  1. Some constructions of non-generalized Reed-Solomon MDS Codes

    cs.IT 2025-06 conditional novelty 5.0 of 10

    Necessary and sufficient conditions are given for two extended evaluation-code families to be non-GRS MDS codes, and o-monomials are characterized by nonvanishing complete symmetric functions.

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