M. Harada

activity

20082023

most citedBinary linear complementary dual codes

56 citations · 269 across the 60 of their papers we have counts for

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Showing 2022Show all

4 papers · 1 filter

cs.IT2022

Some restrictions on the weight enumerators of near-extremal ternary self-dual codes and quaternary Hermitian self-dual codes

Makoto Araya, Masaaki Harada

We give restrictions on the weight enumerators of ternary near-extremal self-dual codes of length divisible by $12$ and quaternary near-extremal Hermitian self-dual codes of length…

cs.IT2022

Self-dual codes over $F_{5}$ and $s$ -extremal unimodular lattices

Masaaki Harada

New $s$ -extremal extremal unimodular lattices in dimensions $38$ , $40$ , $42$ and $44$ are constructed from self-dual codes over $F_{5}$ by Construction A. In the process of…

math.CO2022★ 5 cited

Hadamard matrices related to a certain series of ternary self-dual codes

Makoto Araya, Masaaki Harada, Koji Momihara

In 2013, Nebe and Villar gave a series of ternary self-dual codes of length $2 (p + 1)$ for a prime $p$ congruent to $5$ modulo $8$ . As a consequence, the third ternary extremal self-…

cs.IT2022★ 2 cited

Construction of extremal Type II $Z_{2 k}$ -codes

Masaaki Harada

We give methods for constructing many self-dual $Z_{m}$ -codes and Type II $Z_{2 k}$ -codes of length $2 n$ starting from a given self-dual $Z_{m}$ -code and Type…

Some restrictions on the weight enumerators of near-extremal ternary self-dual codes and quaternary Hermitian self-dual codes

Self-dual codes over F5​ and s-extremal unimodular lattices

Hadamard matrices related to a certain series of ternary self-dual codes

Construction of extremal Type II Z2k​-codes

Self-dual codes over $F_{5}$ and $s$ -extremal unimodular lattices

Construction of extremal Type II $Z_{2 k}$ -codes