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https://open.uns.ac.rs/handle/123456789/31346
Nаziv: | Variants of finite full transformation semigroups | Аutоri: | Dolinka Igor East James |
Dаtum izdаvаnjа: | 2015 | Čаsоpis: | International Journal of Algebra and Computation | Sažetak: | © 2015 World Scientific Publishing Company. The variant of a semigroup S with respect to an element a S, denoted Sa, is the semigroup with underlying set S and operation ∗ defined by x∗y = xay for x,y S. In this paper, we study variants Xa of the full transformation semigroup X on a finite set X. We explore the structure of Xa as well as its subsemigroups Reg(Xa) (consisting of all regular elements) and RegXa (consisting of all products of idempotents), and the ideals of Reg(Xa). Among other results, we calculate the rank and idempotent rank (if applicable) of each semigroup, and (where possible) the number of (idempotent) generating sets of the minimal possible size. | URI: | https://open.uns.ac.rs/handle/123456789/31346 | ISSN: | 0218-1967 1793-6500 |
DOI: | 10.1142/S021819671550037X |
Nаlаzi sе u kоlеkciјаmа: | PMF Publikacije/Publications |
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