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Some completely regular codes in Doob graphs Full article

Source Completely Regular Codes in Distance-Regular Graphs
Monography, Chapman & Hall. 2025. 504 c. ISBN 9781032494449. Scopus
Output data Year: 2025, Number: Chapter 6, Pages: 379-448 Pages count : 70 DOI: 10.1201/9781003393931-6
Tags Doob graph; Shrikhande graph; completely regular code; equitable partition; perfect code; linear code; additive code; extended perfect code; MDS code
Authors Bespalov Evgeny A. 1 , Krotov Denis S. 1
Affiliations
1 Sobolev Institute of Mathematics

Funding (3)

1 Russian Science Foundation 22-11-00266
2 Russian Science Foundation 18-11-00136
3 Sobolev Institute of Mathematics FWNF-2022-0017

Abstract: The Doob graph on 4^n vertices is a distance regular graph with the same parameters as the Hamming graphs $H(n,4)$ but non isomorphic to it. It can be constructed by taking the Cartesian product of $m>0$ copies of the Shrikhande graph, a special strongly regular graph on 16 vertices, and $n-2m$ copies of the Hamming graph $H(1,4)$. For Doob graphs, we prove MacWilliams-type theorems connecting the weight distributions of dual additive codes, describe the characterization of parameters of perfect codes, multifold perfect codes, and extended perfect codes and the characterization of maximum distance-separable codes (including a characterization of such codes in Hamming graphs $H(n,4)$), and obtain a sequence of results on admissibility of intersection arrays of completely regular codes with covering radius $1$.
Cite: Bespalov E.A. , Krotov D.S.
Some completely regular codes in Doob graphs
Monography chapter Completely Regular Codes in Distance-Regular Graphs. – Chapman & Hall., 2025. – C.379-448. – ISBN 9781032494449. DOI: 10.1201/9781003393931-6 Scopus OpenAlex
Dates:
Published online: Mar 15, 2025
Identifiers:
Scopus: 2-s2.0-105001331744
OpenAlex: W4407438298
Citing: Пока нет цитирований
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