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- W2024897051 abstract "It is well known that if n is even, the addition table for the integers modulo n (which we denote by Bn) possesses no transversals. We show that if n is odd, then the number of transversals in Bn is at least exponential in n. Equivalently, for odd n, the number of diagonally cyclic latin squares of order n, the number of complete mappings or orthomorphisms of the cyclic group of order n, the number of magic juggling sequences of period n and the number of placements of n non-attacking semi-queens on an n×n toroidal chessboard are at least exponential in n. For all large n we show that there is a latin square of order n with at least (3.246)n transversals. We diagnose all possible sizes for the intersection of two transversals in Bn and use this result to complete the spectrum of possible sizes of homogeneous latin bitrades. We also briefly explore potential applications of our results in constructing random mutually orthogonal latin squares." @default.
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- W2024897051 date "2010-01-01" @default.
- W2024897051 modified "2023-09-30" @default.
- W2024897051 title "On the number of transversals in Cayley tables of cyclic groups" @default.
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- W2024897051 doi "https://doi.org/10.1016/j.dam.2009.09.006" @default.
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