On universality of extensions

  • P. Goralčik
  • V. Koubek
Conference paper
Part of the Lecture Notes in Mathematics book series (LNM, volume 1320)


Full Subcategory Isomorphic Copy Left Zero Universal Variety Full Embedding 
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    Z. Hedrlín and J. Lambek: How comprehensive is the category of semigroups?, J. Algebra 11 (1969), 195–212.MathSciNetCrossRefzbMATHGoogle Scholar
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    V. Koubek and J. Sichler: Universal varieties of semigroups, J. Austral. Math. Soc. (Series A) 36 (1984), 143–152.MathSciNetCrossRefzbMATHGoogle Scholar
  3. [3]
    A. Pultr and V. Trnková: Combinatorial, algebraic and topological representations of groups, semigroups and categories, North Holland, Amsterdam, 1980.zbMATHGoogle Scholar

Copyright information

© Springer-Verlag 1988

Authors and Affiliations

  • P. Goralčik
  • V. Koubek

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