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Free products with amalgamation of commutative inverse semigroups

Published online by Cambridge University Press:  09 April 2009

Teruo Imaoka
Affiliation:
Department of Mathematics, Monash University Clayton, Victoria, Australia, 3168.
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A class of algebras A is said to have the strong amalgamation property if for any indexed set of algebras {Ai: iJ} from A, each having an algebra UA as a subalgebra, there exist an algebra BA and monomorphisms φi: AiB (for each iJ) such that (i) φi|U = φi| U for all i,j∈J, (ii) φi(Ai) ∩ φi(Aj) =φi(U) for atl i, j ∈ J with i ≠ j, where φi|U denotes the restriction of φi to U. Omitting condition (ii) gives us the definition of the weak amalgamation property.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1976

References

Clifford, A. H. and Preston, G. B. (1961, 1967), The Algebraic Theory of Semigroups (Math. Surveys, No. 7, Amer. Math. Soc., Providence, R. I. Vol. I, Vol. II).Google Scholar
Hall, T. E. (1975), ‘Free products with amalgamation of inverse semigroups’, J. Algebra (to appear).CrossRefGoogle Scholar
Jónsson, Bjarni (1965), ‘Extensions of relational structures’, The Theory of Models (Proceedings of the 1963 International Symposium at Berkeley, edited by Addison, J. W., Henkin, L. and Tarski, A., North Holland, Amsterdam), 146157.Google Scholar
Preston, G. B. (1973), ‘Inverse semigroups: some open questions’, Proceedings of a symposium on inverse semigroups and their generalizations, Northern Illinois University, 122139.Google Scholar