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On a Class of Semigroups

Published online by Cambridge University Press:  20 November 2018

D. Ž. Djoković
D. Ž. Djoković*
Affiliation:
University of Waterloo
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Let Sn, r be the semigroup generated by two elements a and b with two defining relations

(1)

By symmetry, we may assume that n ≤ r. In [l] and [2] it was shown that the semigroups

and

Type
Research Article
Information
Canadian Mathematical Bulletin , Volume 12 , Issue 2 , April 1969 , pp. 213 - 215
Copyright
Copyright © Canadian Mathematical Society 1969

References

1. Buck, R. G., Decidable semigroups. Bull. Amer. Math. Soc. 74 (1968) 892–894.Google Scholar
2. Buck, R. C., On certain decidable semigroups. Amer. Math. Monthly 75 (1968) 852–856.Google Scholar