Dimitrova, Ilinka; Koppitz, Jörg On relative ranks of the semigroup of orientation-preserving transformations on infinite chain with restricted range. (English) Zbl 1505.20057 Commun. Algebra 50, No. 5, 2157-2168 (2022). MSC: 20M20 × Cite Format Result Cite Review PDF Full Text: DOI arXiv
Dimitrova, I.; Koppitz, J. On relative ranks of finite transformation semigroups with restricted range. (English. Ukrainian original) Zbl 1509.20122 Ukr. Math. J. 73, No. 5, 718-730 (2021); translation from Ukr. Mat. Zh. 73, No. 5, 617-626 (2021). MSC: 20M20 × Cite Format Result Cite Review PDF Full Text: DOI arXiv
Dimitrova, Ilinka; Koppitz, Jörg On relative ranks of the semigroup of orientation-preserving transformations on infinite chains. (English) Zbl 1491.20128 Asian-Eur. J. Math. 14, No. 8, Article ID 2150146, 15 p. (2021). MSC: 20M20 × Cite Format Result Cite Review PDF Full Text: DOI arXiv
Dimitrova, Ilinka; Fernandes, Vítor H.; Koppitz, Jörg A note on generators of the endomorphism semigroup of an infinite countable chain. (English) Zbl 1357.20031 J. Algebra Appl. 16, No. 2, Article ID 1750031, 9 p. (2017). MSC: 20M20 20M10 20M05 × Cite Format Result Cite Review PDF Full Text: DOI arXiv