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Article
Infinite families of generalized Bhaskar Rao designs
Faculty of Informatics - Papers (Archive)
Publication Date
1-1-1998
Abstract
We show that GBRD(p,1/2(p-1), 1/8(p-1)(p-3);EA(1/2p-1)) exist for all prime powers p ≡ 3 (mod 4). We also show that GBRD(p,1/2(p - 1), 1/4(p - 1)(p - 3); EA(1/2(p - 1)) exist for all prime powers p ≡ 1 (mod 4).
This allows us to give a new proof that a BIBD(f(ef + 1),(ef + 1)(ef2 + f -1),ef + f -1,f,f - 1) exists whenever p = ef + 1 is a prime power. This gives many new GBRDs including a GBRD(19,9,36;EA(9)), a GBRD(13,6,30;Z6) and a GBRD(17,8,6;EA(8)).
Disciplines
Citation Information
Jennifer Seberry. "Infinite families of generalized Bhaskar Rao designs" (1998) Available at: http://works.bepress.com/jseberry/354/
Jennifer Seberry, Infinite families of generalized Bhaskar Rao designs, Special Issue of JCISS in honor of Professor J.N. Srivastava, Journal of Combinatorics, Information and Statistics, 23, Nos 1-4, (1998), 455-464.