Distributive and Anti-distributive Mendelsohn Triple Systems
Canadian mathematical bulletin, Tome 59 (2016) no. 1, pp. 36-49

Voir la notice de l'article provenant de la source Cambridge University Press

We prove that the existence spectrum of Mendelsohn triple systems whose associated quasigroups satisfy distributivity corresponds to the Loeschian numbers, and provide some enumeration results. We do this by considering a description of the quasigroups in terms of commutative Moufang loops. In addition we provide constructions of Mendelsohn quasigroups that fail distributivity for asmany combinations of elements as possible. These systems are analogues of Hall triple systems and anti-mitre Steiner triple systems respectively.
DOI : 10.4153/CMB-2015-053-2
Mots-clés : 20N05, 05B07, Mendelsohn triple system, quasigroup, distributive, Moufang loop, Loeschian numbers
Donovan, Diane M.; Griggs, Terry S.; McCourt, Thomas A.; Opršal, Jakub; Stanovský, David. Distributive and Anti-distributive Mendelsohn Triple Systems. Canadian mathematical bulletin, Tome 59 (2016) no. 1, pp. 36-49. doi: 10.4153/CMB-2015-053-2
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[1] [1] Belousov, V. D., Osnovy teorii kvazigrupp i lup. Izdat. “Nauka”, Moscow, 1967. Google Scholar

[2] [2] Bénétau, L., Commutative Moufang loops and related groupoids. In: Quasigroups and loops: theory and applications. Sigma Ser. Pure Math., 8, Heldermann, Berlin, 1990, pp. 115–142. Google Scholar

[3] [3] Bruck, R. H., A survey of binary systems. Ergebnisse der Mathematik und ihrer Grenzgebiete, Springer Verlag, Berlin-Gôttingen-Heidelberg, 1958. Google Scholar

[4] [4] Colbourn, C. J. and Dinitz, J.H., (eds.), Handbook of combinatorial designs. Second éd., Chapman and Hall/CRC Press, Boca Raton, FL, 2007. Google Scholar

[5] [5] Colbourn, C. J., E. Mendelsohn, A. Rosa, and J. Sirân, Anti-mitre Steiner triple systems. Graphs Combin. 10(1994), no. 3, 215–224. http://dx.doi.Org/10.1007/BF02986668 Google Scholar

[6] [6] Delandtsheer, A., Doyen, J., Siemons, J., and Tamburini, C., Doubly homogeneous 2-(v, k, 1) designs. J. Combin. Theory Ser. A 43(1986), no. 1,140-145. http://dx.doi.Org/10.1016/0097-3165(86)90033-6 Google Scholar

[7] [7] Fujiwara, Y., Constructions for anti-mitre Steiner triple systems. J. Combin. Des. 13(2005), no. 4, 286–291. http://dx.doi.Org/10.1002/jcd.20041 Google Scholar

[8] [8] Fujiwara, Y., Infinite classes of anti-mitre and 5-sparse Steiner triple systems. J. Combin. Des. 14(2006), no. 3, 237–250. http://dx.doi.Org/10.1 OO2/jcd.2OO78 Google Scholar

[9] [9] Galkin, V. M., Finite distributive quasigroups. (Russian) Mat. Zametki 24(1978), 39–41. Google Scholar

[10] [10] The GAP Group, GAP-Groups, Algorithms, and Programming, Version 4.5.5. 2012. http://www.gap-system.org Google Scholar

[11] [11] Hall, M., Automorphisms ofSteiner triple systems. IBM J. Res. Develop. 4(1960), 460–472. http://dx.doi.Org/10.1147/rd.45.0460 Google Scholar

[12] [12] Kepka, T. and Nëmec, P., Commutative Moufang loops and distributive groupoids of small orders. Czechoslovak Math. J. 31(106)(1981), 633–669. Google Scholar

[13] [13] Kirkman, T. P., On a problem in combinations. Cambridge and Dublin Math. J. 2(1847), 191–204. Google Scholar

[14] [14] Mendelsohn, N.S., A natural generalization ofSteiner triple systems. In: Computers in number theory Academic Press, London, 1971, 323–338. Google Scholar

[15] [15] Nagy, G. P. and P. Vojtëchovsky, LOOPS: Computing with quasigroups and loops in GAP, version 2.2.0. http://www.math.du.edu/loops Google Scholar

[16] [16] H, J. D.. Smith, Finite distributive quasigroups. Math. Proc. Cambridge Philos. Soc. 80(1976), no. 1, 37–41. http://dx.doi.Org/10.1017/S0305004100052634 Google Scholar

[17] [17] Soublin, J-P., Étude algébrique de la notion de moyenne. J. Math. Pures Appl. (9) 50(1971), 53–264. Google Scholar

[18] [18] Stanovsky, D., A guide to self-distributive quasigroups, or latin quandles. Quasigroups Related Systems 23(2015), no. 1, 91–128. Google Scholar

[19] [19] Wolfe, A., The resolution of the anti-mitre Steiner triple system conjecture. J. Combin. Des. 14(2006), no. 3, 229–236. http://dx.doi.Org/!0.1OO2/jcd.2OO79 Google Scholar

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