Existence of generalized Bhaskar Rao designs with block size 3 |
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Authors: | R. Julian R. Abel Diana Combe |
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Affiliation: | a School of Mathematics and Statistics, The University of New South Wales, NSW 2052, Australia b School of Mathematics and Statistics, The University of Sydney, NSW 2006, Australia |
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Abstract: | ![]() There are well-known necessary conditions for the existence of a generalized Bhaskar Rao design over a group G, with block size k=3. The recently proved Hall-Paige conjecture shows that these are sufficient when v=3 and λ=|G|. We prove these conditions are sufficient in general when v=3, and also when |G| is small, or when G is dicyclic. We summarize known results supporting the conjecture that these necessary conditions are always sufficient when k=3. |
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Keywords: | Generalized Bhaskar Rao design Dicyclic group Group divisible design |
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