Divisible design digraphs and association schemes
arXiv:2004.00510
Abstract
Divisible design digraphs are constructed from skew balanced generalized weighing matrices and generalized Hadamard matrices. Commutative and non-commutative association schemes are shown to be attached to the constructed divisible design digraphs.
15 pages. arXiv admin note: text overlap with arXiv:1706.06281