Semigroup Forum

, Volume 14, Issue 1, pp 137–141 | Cite as

Semigroups with an idempotent power I word problems

  • J. A. Gerhard
Research Article

Keywords

Word Problem 

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References

  1. [1]
    Brown, T.C.,On the finiteness of semigroups in which xr =x, Proc. Cambridge Phil. Soc. 60 (1964), 1028–1029.Google Scholar
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    Cohn, P.M.,Universal Algebra, Harper and Row, New York, 1965.Google Scholar
  3. [3]
    Gerhard, J.A.,The lattice of equational classes of idempotent semigroups, J. of Algebra 15 (1970), 195–224.Google Scholar
  4. [4]
    Green, J.A. and D. Rees,On semigroups in which xr =x, Proc. Cambridge Phil. Soc. 48 (1952), 35–40.Google Scholar
  5. [5]
    McLean, D.,Idempotent semigroups, Amer. Math. Monthly 61 (1954), 110–113.Google Scholar
  6. [6]
    Petrich, M.,All subvarieties of a certain variety of semigroups, Semigroup Forum 7 (1974), 104–152.Google Scholar

Copyright information

© Springer-Verlag New York Inc 1977

Authors and Affiliations

  • J. A. Gerhard
    • 1
  1. 1.University of ManitobaWinnipegCanada

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