Hall, Robert E. Commutative cancellative semigroups with two generators. (English) Zbl 0244.20074 Czech. Math. J. 21(96), 449-452 (1971). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 20M05 Free semigroups, generators and relations, word problems 20M99 Semigroups PDF BibTeX XML Cite \textit{R. E. Hall}, Czech. Math. J. 21(96), 449--452 (1971; Zbl 0244.20074) Full Text: EuDML References: [1] A. H. Clifford, G. B. Preston: The Algebraic Theory of Semigroups. Vol. I, American Math. Society, Providence, R. I., 1961. · Zbl 0111.03403 [2] J. B. Fraleigh: A First Course in Abstract Algebra. Addison Wesley, Reading, Mass., 1967. · Zbl 0154.26303 [3] M. Petrich: On the structure of a class of commutative semigroups. Czechoslovak Math. J., 14 (1964), 147-153. · Zbl 0143.03403 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. It attempts to reflect the references listed in the original paper as accurately as possible without claiming the completeness or perfect precision of the matching.