In a round-dance neighbour design, an odd number v of objects is arranged successively in (v âˆ’ 1)=2 rings (circular blocks) such that any two of the objects are adjacent to one another in exactly oneâ€¦ (More)

In 1980, about 20 years after sequenceable groups were introduced by Gordon to construct row-complete latin squares, Keedwell published a survey of all the available results concerning sequencings.â€¦ (More)

We investigate defining sets for latin squares where we are given that the latin square is the Cayley table for some group. Our main result is that the proportion of entries in a smallest definingâ€¦ (More)