Equivalences of ${\mathbb{Z}}_t\times {\mathbb{Z}}_2^2$-cocyclic Hadamard matrices

V. Alvarez, F. Gudiel, M. B. Guemes +2

One of the most promising structural approaches to resolving the Hadamard Conjecture uses the family of cocyclic matrices over ${\mathbb{Z}}_t\times {\mathbb{Z}}_2^2$. Two types of…