Abstract
Given a transformation semigroup S over a finite set X we determine necessary and sufficient conditions on the generators of S in order that it contains all singular transformations.
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André, J. Semigroups That Contain All Singular Transformations. Semigroup Forum 68, 304–307 (2004). https://doi.org/10.1007/s00233-003-0006-z
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DOI: https://doi.org/10.1007/s00233-003-0006-z