Left and right regular elements of the semigroups of transformations preserving an equivalence relation and a cross-section
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DOI: 10.1142/s179355711950058x
Abstract: Let [Formula: see text] be the semigroup of all transformations on a set [Formula: see text]. For an arbitrary equivalence relation [Formula: see text] on [Formula: see text] and a cross-section [Formula: see text] of… read more here.
Keywords: right regular; equivalence relation; formula see; see text ... See more keywords