References
Arbib, M. A.,Automaton automorphisms, Information and Control (1967), 147–154.
Clifford, A. H. and G. B. Preston,The algebraic theory of semigroups, American Mathematical Society II (1967), Providence, R.I.
Hall, M. Jr.,The theory of groups, MacMillan, N.Y. (1959).
Paradis, A. and G. Thierrin,Strong endomorphisms of automata, Proceedings of the Conference on Fundamentals of Computation Theory, Berlin Akademic-Vertag (1979), 318–324.
Thierrin, G.,Demi-groupes inversés et rectangulaires, Bull. Acad. Royale Belgique 41 (1955), 83–92.
Author information
Authors and Affiliations
Additional information
Communicated by G. Lallement
This research has been supported by Grant A8218 of the Natural Sciences and Engineering Research Council of Canada.
Rights and permissions
About this article
Cite this article
Rankin, S.A. Congruence-preserving endomorphisms. Semigroup Forum 22, 199–216 (1981). https://doi.org/10.1007/BF02572799
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02572799