On Bhaskar Rao designs of block size four
Warwick de Launey
Jennifer Seberry, University of WollongongFollow
de Launey, W and Seberry, J, On Bhaskar Rao designs of block size four, Combinatorics and Applications, Proceedings of the Seminar on Combinatorics and its Applications in honour of Professor S.S.Shrikhande, (K.S.Vijayan and N.M.Singhi, (Eds.)), Indian Statistical Institute, Calcutta, 1984, 311-316.
We show that Bhaskar Rao designs of type BRD(v, b, r, 4, 6) exist for v = 0,1 (mod 5) and of type BRD (v, b, r, 4,12) exist for all v ≥ 4.
Since October 24, 2011
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