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Free left and right adequate semigroups
[article]
2009
arXiv
pre-print
Recent research of the author has given an explicit geometric description of free (two-sided) adequate semigroups and monoids, as sets of labelled directed trees under a natural combinatorial multiplication. In this paper we show that there are natural embeddings of each free right adequate and free left adequate semigroup or monoid into the corresponding free adequate semigroup or monoid. The corresponding classes of trees are easily described and the resulting geometric representation of free
arXiv:0904.0916v2
fatcat:5psayozxovbhnm3yhoomjcu4tm