References
J. A. Gerhard andM. Petrich, Certain characterizations of varieties of bands. Proc. Edinburgh Math. Soc.31, 301–319 (1988).
J. A. Gerhard andA. Shafaat, Semivarieties of idempotent semigroups. Proc. London Math. Soc.22, 667–680 (1971).
A. I. Malcev, Multiplication of classes of algebraic systems (English translation). Siberian Math. J.8, 254–267 (1967).
M.Petrich, Lectures in semigroups. Berlin 1977.
M. Petrich, Structure of completely regular semigroups. Trans. Amer. Math. Soc.189, 211–236 (1974).
E. V. Sukhanov, The groupoid of varieties of idempotent semigroups. Semigroup Forum14, 143–159 (1977).
Author information
Authors and Affiliations
Additional information
Research supported by N.S.E.R.C. of Canada.
Rights and permissions
About this article
Cite this article
Gerhard, J.A., Petrich, M. The Malcev product of quasivarieties of normal bands. Arch. Math 52, 140–148 (1989). https://doi.org/10.1007/BF01191266
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01191266