Semigroup extensions of partial groupoids

  • E. S. Ljapin
Conference paper
Part of the Lecture Notes in Mathematics book series (LNM, volume 1320)


Maximal Element Active Ideal Partial Transformation Minimal Ideal Semigroup Variety 
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  1. 1.
    E.S. Ljapin, Problems of the theory of semigroup extensions of partial groupoids, "Contemporary Algebra", I, Leningrad, 1974, 130–145 (in Russian).Google Scholar
  2. 2.
    E.S. Ljapin, On internal extensions of partial operations to complete associative ones, "Izv. Vysš. Učebn. Zaved. Matematika," No. 7(242), 1982, 40–44 (in Russian).Google Scholar
  3. 3.
    V.V. Rozen, Partial operations in ordered sets, Saratov Univ. Press, 1973. (in Russian)Google Scholar
  4. 4.
    E.S. Ljapin, An abstract characterization of partial groupoids of words with synonyms, "Algebraic Theory of Semigroups. Colloq. Math. Soc. János Bolyai", 20, 1976, 341–356.MathSciNetGoogle Scholar
  5. 5.
    E.S. Ljapin, Partielle Operationen in der Theorie der Halbgruppen, "Lecture Notes in Mathematics", 855, 1978, 33–48.MathSciNetCrossRefGoogle Scholar
  6. 6.
    E.S. Ljapin, Weak associativity of partial operations, "Semigroup Varieties and Endomorphism Semigroups", Leningrad, 1979, 95–112 (in Russian).Google Scholar
  7. 7.
    G. Grätzer, Universal algebra, D. Van Nostrand Company, 1968.Google Scholar
  8. 8.
    E. S. Ljapin, An abstract characterization of one class of partial groupoids of transformations, "Izv. Vysš. Učebn. Zaved. Matematika", No. 6(241), 1982, 30–36 (in Russian).Google Scholar
  9. 9.
    E. S. Ljapin, Associative systems of all partial transformations, Dokl. Akad. Nauk SSSR", 88, 1953, 13–15 (in Russian).MathSciNetGoogle Scholar
  10. 10.
    L. M. Gluskin, On some dense embeddings, "Matem. Sb.", 61 1963, 175–206 (in Russian).MathSciNetGoogle Scholar
  11. 11.
    L. M. Gluskin, On dense extensions, "Trudy Moskov. Mat. Obshch.", 129, 1973, 119–131 (in Russian).MathSciNetzbMATHGoogle Scholar

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© Springer-Verlag 1988

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  • E. S. Ljapin

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