Semigroup Forum

, Volume 39, Issue 1, pp 311–322 | Cite as

A functional treatment of right invariant right holoids

  • Ludwig Cottin
Research Article


Through this paper we are concerned with right invariant right holoids which are semigroups with left cancellation rule, ordered by right divisibility. We are able to give a structure theorem under weak additional assumptions. In the proof we use factorsystems which occur in homological algebra.


Exact Sequence Factor System Positive Cone Structure Theorem Shift Mapping 
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Copyright information

© Springer-Verlag New York Inc. 1989

Authors and Affiliations

  • Ludwig Cottin
    • 1
  1. 1.Dept. of MathematicsUniversity of DuisburgDuisburg 1West Germany

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