New Extremal Binary Self-Dual Codes from Block Circulant Matrices and Block Quadratic Residue Circulant Matrices

Autor: Alexander Tylyshchak, Abidin Kaya, Joe Gildea, Rhian Taylor, Bahattin Yildiz
Rok vydání: 2020
Předmět:
DOI: 10.48550/arxiv.2003.05296
Popis: In this paper, we construct self-dual codes from a construction that involves both block circulant matrices and block quadratic residue circulant matrices. We provide conditions when this construction can yield self-dual codes. We construct self-dual codes of various lengths over F 2 and F 2 + u F 2 . Using extensions, neighbours and sequences of neighbours, we construct many new self-dual codes. In particular, we construct one new self-dual code of length 66 and 51 new self-dual codes of length 68.
Databáze: OpenAIRE