2024/10/30 by Raúl Manuel Falcón Ganfornina, Falcón, Raúl M., L. Mella +3 · 1 citation
Business, Management and Accounting · Engineering · Mathematics · #05B15 #20N05 #Combinatorics (math.CO) #FOS: Mathematics #Mathematics and Applications #Optics and Image Analysis #graph theory and CDMA systems
paper · pdf · doi:10.48550/arxiv.2410.23183
openalex publication_date 2024/10/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The Hadamard quasigroup product has recently been introduced as a natural generalization of the classical Hadamard product of matrices. It is defined as the superposition operator of three binary operations, one of them being a quasigroup operation. This paper delves into the fundamentals of this superposition operator by considering its more general version over multiary groupoids. Particularly, we show how this operator preserves algebraic identities, multiary groupoid structures, inverse elements, isotopes, conjugates and orthogonality. Then, we generalize the mentioned Hadamard quasigroup product to multiary quasigroups. Based on this product, we prove that the number of m-ary quasigroups defined on a given set X coincides with the number of m-ary operations that are orthogonal to a given m-set of orthogonal m-ary operations over X.