Latin Interchanges and Direct Products

Diane Donovan1, Rebecca A.H.Gower2, Abdollah Khodkar1
1Centre for Discrete Mathematics and Computing Department of Mathematics The University of Queensland, 4072, Australia
2Mathematical Institute Oxford, OX1 3LB, England

Abstract

In this paper, we focus on the identification of Latin interchanges in Latin squares that are the direct product of Latin squares of smaller orders. The results we obtain on Latin interchanges will be used to identify critical sets in direct products. This work is an extension of research carried out by Stinson and van Rees in \(1982\).