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Various varieties1

  • Sheila Oates MacDonald (a1)
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The study of varieties of universal algebras2 which was initiated by Birkhoff in 1935, [2], has received considerable attention during the past decade; the question of particular interest being: “Which varieties have a finite basis for their laws?” In that paper Birkhoff showed that the laws of a finite algebra which involve a bounded number of variables are finitely based, so it is not altogether surprising that finite algebras have received their share of this attention.

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References
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[1]Baker, K. A., ‘Equational bases for finite algebras’ (Preliminary report), Notices Amer. Math. Soc. 19 (1972), 691–08–2.
[2]Birkhoff, G., ‘On the structure of abstract algebras’, Proc. Cambridge Phil. Soc. 31 (1935), 433454.
[3]Cohn, P. M., Universal algebra (Harper & Row, New York, 1965).
[4]Day, A., ‘A characterization of modularity for congruence lattices of algebras’, Canad. Math. Bull. 12 (1969), 167173.
[5]Evans, T., ‘Identical relations in loops’, J. Austral. Math. Soc. 12 (1971), 275286.
[6]Jónsson, B., ‘Algebras whose congruence lattices are distributive’, Math. Scand. 21 (1967), 110121.
[7]Kovács, L. G. and Newman', M. F., Cross varieties of groups', Proc. Roy. Soc. (London) A, 292 (1966), 530536.
[8]Kruse, R. L., ‘Identities satisfied by a finite ring’, J. Algebra 26 (1973), 298318.
[9]Lyndon, R. C., ‘Identities in two-valued calculi’, Trans. Amer. Math. Soc. 71 (1951), 457465.
[10]Mal'cev, A. I., ‘On the general theory of algebraic systems’, Mat. Sb. (N. S.) 35 (77) (1954), 320.
[11]McKenzie, R., ‘Equational bases for lattice theories’, Math. Scand. 27 (1970), 2438.
[12]Murskii, V. L., ‘The existence in three-valued logic of a closed class with finite basis, not having a finite complete system of identities’, Soviet Math. Doklady, 6 (1965), 10201024.
[13]Neumann, Hanna, Varieties of groups (Ergebaisse der Mathematik und ihrer Grenzgebiete, Bd. 37, Springer-Verlag, Berlin, 1967).
[14]Oates, Sheila and Powell, M. B., ‘Identical relations in finite groups’, J. Algebra 1 (1964), 1139.
[15]Perkins, P., ‘Bases for equational theories of semigroups’, J. Algebra 11 (1969), 298314.
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Journal of the Australian Mathematical Society
  • ISSN: 1446-7887
  • EISSN: 1446-8107
  • URL: /core/journals/journal-of-the-australian-mathematical-society
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