Relative rank of the finite full transformation semigroup with restricted range
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Abstract
In this paper, we determine the relative rank of the semigroup T(X; Y ) of all transformations on a nite set X with restricted range Y modulo the semigroup of all extensions of the bijections on Y , modulo the idempotent order-preserving transformations in T(X; Y ), and modulo the semigroup of all order-preserving transformations in T(X; Y ).
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Koppitz, J., & Tinpun, K.
(2016).
Relative rank of the finite full transformation semigroup with restricted range.
Acta Mathematica Universitatis Comenianae, 85(2), 347-356.
Retrieved from http://www.iam.fmph.uniba.sk/amuc/ojs/index.php/amuc/article/view/265/395
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