New type i binary [72, 36, 12] self-dual codes from composite matrices and R1 lifts
| Autor: | Serap Sahinkaya, Adrian Korban, Deniz Ustun |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Advances in Mathematics of Communications. 17:994-1011 |
| ISSN: | 1930-5338 1930-5346 |
| Popis: | In this work, we define three composite matrices derived from group rings. We employ these composite matrices to create generator matrices of the form \begin{document}$ [I_n \ | \ \Omega(v)], $\end{document} where \begin{document}$ I_n $\end{document} is the identity matrix and \begin{document}$ \Omega(v) $\end{document} is a composite matrix and search for binary self-dual codes with parameters \begin{document}$ [36,18, 6 \ \text{or} \ 8]. $\end{document} We next lift these codes over the ring \begin{document}$ R_1 = \mathbb{F}_2+u\mathbb{F}_2 $\end{document} to obtain codes whose binary images are self-dual codes with parameters \begin{document}$ [72,36,12]. $\end{document} Many of these codes turn out to have weight enumerators with parameters that were not known in the literature before. In particular, we find \begin{document}$ 30 $\end{document} new Type I binary self-dual codes with parameters \begin{document}$ [72,36,12]. $\end{document} |
| Databáze: | OpenAIRE |
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