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Bipackings of pairs into triples, and isomorphism classes of small bipackings

Published online by Cambridge University Press:  09 April 2009

R. G. Stanton
Affiliation:
Department of Computer Science University of Manitoba Winnipeg, CanadaR3T 2N2
M. J. Rogers
Affiliation:
Department of Computer Science University of Manitoba Winnipeg, CanadaR3T 2N2
R. F. Quinn
Affiliation:
Department of Computer Science University of Waterloo Waterloo, CanadaN2L 3G1
D. D. Cowan
Affiliation:
Department of Computer Science University of Waterloo Waterloo, CanadaN2L 3G1
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Abstract

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The (2, 3, ν) bipacking number is determined for all integers ν, and the number of non-isomorphic bipackings is found for small values of ν. The general solution for lambada packings of pairs into triples is deduced from the results for λ = 1 and λ = 2.

MSC classification

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1983

References

[1]Billington, E. J. (Morgan), ‘Some small quasi-multiple designs’, Ars Combinatoria 3 (1977), 233250.Google Scholar
[2]Fort, M. K. and Hedlund, G. A., ‘Minimal coverings of pairs by triples’, Pacific J. Math. 8 (1958), 709719.CrossRefGoogle Scholar
[3]Ganter, B., Mathon, R. and Rosa, A., ‘A complete census of (10, 3, 2)-block designs and of Mendelsohn triple systems of order 10’, Congressus Numerantium 20 (1977), 383398.Google Scholar
[4]Mathon, R. and Rosa, A., ‘A census of Mendelsohn triple systems of order 9’, Ars Combinatoria 4 (1977), 309315.Google Scholar
[5]Stanton, R. G., Bate, J. A. and Mullin, R. C., ‘Isomorphism classes of a set of prime BIBD parameters’, Ars Combinatoria 2 (1976), 251264.Google Scholar
[6]Stanton, R. G. and Collens, R. J., ‘A computer system for research on the family classification of BIBD's’, Proc. International Congress on Combinatorial Theory, pp. 133169 (Acad. dei Lincei, Rome 1973).Google Scholar
[7]Stanton, R. G. and Goulden, I. P., ‘Graph factorization, general triple systems, and cyclic triple systems’, Aequationes Math. 22 (1981), 128.CrossRefGoogle Scholar
[8]Stanton, R. G. and Kalbfleisch, J. G., ‘Maximal and minimal coverings of (κ − 1)-tuples by κ-tuples’, Pactfic J. Math. 26 (1968). 131140.Google Scholar
[9]Street, A. P., ‘Some designs with block size three’, Combinatorial Mathematics VII, pp. 224237 (Lecture Notes in Mathematics 829, Springer-Verlag, 1979).Google Scholar
[10]Wilson, R. M. and Ray-Chaudhuri, D. K., ‘Solution of Kirkman's schoolgirl problem’, Proc. Symposia Pure Math. 19 (1971), 187203.Google Scholar