References
Clifford, A.H. and G.B. Preston,TheAlgebraicTheoryofSemigroups, Amer. Math. Soc., Mathematical Surveys 7, I and II (Providence, R.I., 1961 and 1967).
Fleischer, I.,A note on subdirect products, Acta Math. Acad. Sci. Hungar 6 (1955), 463–465.
Hall, T.E.,On regular semigroups whose idempotents form a subsemigroup, Bull. Austral. Math. Soc., 1 (1969), 195–208.
Hall, T.E.,Orthodox semigroups, Pacific J. Math. 39 (1971), 677–686.
Howie, J.M.,An introduction to semigroup theory, L.M.S. Monographs, Academic Press, London (1976).
Meakin, J.C.Congruences on orthodox semigroups, J. Austral. Math. Soc. 12 (1971), 323–341.
Author information
Authors and Affiliations
Additional information
Communicated by J. M. Howie
Rights and permissions
About this article
Cite this article
Venkatesan, P.S. Orthodox semigroups. Semigroup Forum 20, 227–231 (1980). https://doi.org/10.1007/BF02572682
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02572682