Hostname: page-component-77c89778f8-m8s7h Total loading time: 0 Render date: 2024-07-17T16:57:29.771Z Has data issue: false hasContentIssue false

Homomorphisms having a given H-class as a single class

Published online by Cambridge University Press:  09 April 2009

R. P. Hunter
Affiliation:
Mathematics Department Pennsylvania State UniversityUniversity Park 16802, U.S.A.
L. W. Anderson
Affiliation:
Mathematics Department Pennsylvania State UniversityUniversity Park 16802, U.S.A.
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In [1] it was shown if S is a stable semigroup and H an ℋ-class of S then there is a congruence (H) on S in which H is a single class. After considering some consequences of this result for abstract semigroups, we consider some analogous questions for compact semigroups.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1973

References

[1]Anderson, L., Hunter, R. P. and Koch, R. J., ‘Some results on stability on semigroups’, Trans. Amer. Math. Soc. 117 (1965), 521529.CrossRefGoogle Scholar
[2]Anderson, L. and Hunter, R. P., ‘Certain homomorphisms of a compact semigroup onto a thread’, J. Australian Math. Soc. VII (1967) 311322.Google Scholar
[3]Anderson, L. and Hunter, R. P., ‘Compact semigroups having certain one dimensional quotient spaces’, Amer. J. Math. (to appear), XCII (1970) 894896.Google Scholar
[4]Clifford, A. H. and Preston, G. B., Algebraic theory of semigroups (Surveys, 7 Amer. Math. Soc. 1961).CrossRefGoogle Scholar
[5]O'Canoll, L., ‘Counterexamples in stable semigroups’, Trans. Amer. Math. Soc., 146 (1969), 377386.CrossRefGoogle Scholar
[6]John, Rhodes, ‘Some results on finite semigroups’, J. Algebra, 4 (1966), 471504.Google Scholar
[7]Karl, Folley, Semigroups (Academic Press, 1969).Google Scholar
[8]Teissier, M., ‘Sur les équivalences régulieres dans les demi-groups’, C.R. Acad. Sci. Paris 232 (1951), 19871989.Google Scholar