Knox, Nathaniel The inverse hull of the free semigroup on a set X. (English) Zbl 0407.20047 Semigroup Forum 16, 345-354 (1978). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 2 Documents MSC: 20M05 Free semigroups, generators and relations, word problems Keywords:Rees Factor Semigroup; Inverse Hull of a Free Semigroup PDFBibTeX XMLCite \textit{N. Knox}, Semigroup Forum 16, 345--354 (1978; Zbl 0407.20047) Full Text: DOI EuDML References: [1] Clifford, A. H. and G. B. Preston,TheAlgebraicTheoryofSemigroups, Vol. I, Amer. Math. Soc., Math. Surveys No. 7, Providence, Rhode Island, 1961. · Zbl 0111.03403 [2] Goldhaber, J. K.; Ehrlich, G., Algebra (1970), New York, New York: The Macmillan Company, New York, New York · Zbl 0219.13001 This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. In some cases that data have been complemented/enhanced by data from zbMATH Open. This attempts to reflect the references listed in the original paper as accurately as possible without claiming completeness or a perfect matching.