Complex Hadamard matrices attached to a 3-class nonsymmetric association scheme
Combinatorics
2019-04-26 v2
Abstract
In this paper we classify complex Hadamard matrices contained in the Bose-Mesner algebra of nonsymmetric 3-class association schemes. As a consequence of our classification, we have two infinite families and some small examples of complex Hadamard matrices contained in the Bose-Mesner algebra of a self-dual fission of a complete multipartite graph.
Keywords
Cite
@article{arxiv.1810.08496,
title = {Complex Hadamard matrices attached to a 3-class nonsymmetric association scheme},
author = {Takuya Ikuta and Akihiro Munemasa},
journal= {arXiv preprint arXiv:1810.08496},
year = {2019}
}
Comments
14 pages, minor revision