Abstract
An MDS code is a code which achieves equality in the singleton bound. The defect of a code measures how far it is from an MDS code. Amplifying on the relationship between the weight distribution of a code and its dual code as in the well-known MacWilliams identities, we show in this paper that there are indeed strong lower bounds on the defects of codes or the dual codes.
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Notes
Despite having examined many results in the literature regarding the construction of codes from higher-dimensional algebraic varieties (see § 5), we could not find any precise statement along these lines.
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Acknowledgements
The authors would like to thank both the reviewers for providing valuable comments that were very helpful to the authors in revising the manuscript.
Funding
This study was funded by Simons Foundation (Grant No. 830817).
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Communicated by E. Gorla.
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Can, M.B., Joshua, R. & Ravindra, G.V. Defects of codes from higher dimensional algebraic varieties. Des. Codes Cryptogr. 92, 477–494 (2024). https://doi.org/10.1007/s10623-023-01317-2
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DOI: https://doi.org/10.1007/s10623-023-01317-2