Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-02T23:05:49.075Z Has data issue: false hasContentIssue false

The minimal faithful degree of a semilattice of groups

Part of: Semigroups

Published online by Cambridge University Press:  09 April 2009

David Easdown
Affiliation:
Department of Mathematics, University of Western Australia, Nedlands, 6009, Australia
Rights & Permissions [Opens in a new window]

Abstract

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.

This paper constructs a minimal faithful representation of a semilattice of groups by partial transformations. The solution is expressed in terms of join irreducible elements of the semilattice and minimal faithful representations of groups with respect to certain normal subgroups.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1988

References

[1]Clifford, A. H., ‘Semigroups admitting relative inverses’, Ann. of Math. 42 (1941), 10371049.CrossRefGoogle Scholar
[2]Clifford, A. H. and Preston, G. B., The algebraic theory of semigroups (Math. Surveys No. 7, Amer. Math. Soc., Providence, R.I., Vol I (1961), Vol. II (1967)).Google Scholar
[3]Easdown, D., ‘The minimal faithful degree of a fundamental inverse semigroup’, Bull. Austral. Math. Soc. 35 (1987), 373378.CrossRefGoogle Scholar
[4]Howie, J. M., An introduction to semigroup theory (London Mathematical Society Monographs 7, Academic Press, London, 1976).Google Scholar
[5]Johnson, D. L., ‘Minimal permutation representations of finite groups’, Amer. J. Math. 93 (1971), 857866.CrossRefGoogle Scholar
[6]Karpilovsky, G. I., ‘The least degree of a faithful representation of abelian groups’, Vestnik Har'kov. Gos. Univ. 53 (1970), 107115.Google Scholar
[7]Ljapin, E. S., Semigroups (Translations of Mathematical Monographs, vol. 3, Amer. Math. Soc., Providence, R.I., 1974).Google Scholar
[8]Petrich, Mario, Inverse semigroups (Pure and Applied Mathematics, John Wiley & Sons, 1984).Google Scholar
[9]Preston, G. B., ‘Representations of inverse semigroups by one-to-one partial transformations of a set’, Semigroup Forum 6 (1973), 240245;CrossRefGoogle Scholar
Addendum: Semigroup Forum 8 (1974), 277.Google Scholar
[10]Shevrin, L. N., ‘The Sverdlovsk tetrad’, Semigroup Forum 4 (1972), 274280.Google Scholar
[11]Vagner, V. V., ‘The theory of generalized heaps and generalized groups’, Mat. Sb. 32 (1953), 545632.Google Scholar