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Monoids of languages admitting ring structure

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References

  1. Lassez, J.L. and Shyr, H.J.,Prefix properties and equations in the monoid of languages, Tamkang J. of Math. (To appear).

  2. Peinado, Rolando E.,On semigroups admitting ring structure, Semigroup Forum, Vol. 1 (1970) 189–208.

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  3. Shyr, H.J.,Every subsemigroup of a free semigroup with zero is not an R-semigroup, Semigroup Forum, Vol. 12 (1976) 380–382.

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Authors and Affiliations

  1. Department of mathematics, Soochow University, 111, Taipei, Taiwan

    Danny D. Chu & H. J. Shyr

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  1. Danny D. Chu
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  2. H. J. Shyr
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Communicated by G. Lallement

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Chu, D.D., Shyr, H.J. Monoids of languages admitting ring structure. Semigroup Forum 19, 127–132 (1980). https://doi.org/10.1007/BF02572510

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  • DOI: https://doi.org/10.1007/BF02572510

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