Semigroup Forum

, Volume 56, Issue 3, pp 418–433 | Cite as

Normally Ordered Inverse Semigroups

  • Vitor H. Fernandes


of all normally ordered inverse semigroups. We show that the pseudovariety of inverse semigroups PCS generated by all semigroups of injective and order partial transformations on a finite chain consists of all aperiodic elements of NO . Also, we prove that NO is the join pseudovariety of inverse semigroups. PCS V G , where G is the pseudovariety of all finite groups.


Finite Group Inverse Semigroup Partial Transformation Finite Chain Aperiodic Element 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag New York Inc. 1998

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  • Vitor H. Fernandes

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