The ranks of ideals in various transformation monoids." *Communications in Algebra (DOI:10.1080/00927872.2013.847946) *. 43.2 (2015): 674-692. Abstractauthorsfinalversion.pdfWebsite

"Endomorphisms of semigroups of oriented transformations." *Semigroup Forum (DOI 10.1007/s00233-022-10325-y; Online 2 Dec 2022)*. 106 (2023): 184-210. AbstractWebsite

"Endomorphisms of semigroups of monotone transformations." *Journal of Algebra and its Applications (DOI 10.1142/S0219498824502244; Online 5 July 2023)* (2023). AbstractWebsite

"A new class of divisors of semigroups of isotone mappings of finite chains." *Izv. Vyssh. Uchebn. Zaved. Mat.* (2002): 51-59.

"On semigroups of endomorphisms of a chain with restricted range." *Semigroup Forum (DOI: 10.1007/s00233-013-9548-x)*. 89.1 (2014): 77-104. AbstractWebsite

"Endomorphisms of the semigroup of order-preserving mappings." *Semigroup Forum*. 81 (2010): 277-285.Website

"The monoid of all injective order preserving partial transformations on a finite chain." *Semigroup Forum*. 62 (2001): 178-204.

"On the ranks of certain monoids of transformations that preserve a uniform partition." *Communications in Algebra*. 42.2 (2014): 615-636.

"Presentations for some monoids of partial transformations on a finite chain: a survey." *Semigroups, algorithms, automata and languages (Coimbra, 2001)*. World Sci. Publ., River Edge, NJ, 2002. 363-378.

"Presentations for some monoids of injective partial transformations on a finite chain." *Southeast Asian Bull. Math.*. 28 (2004): 903-918.

"Bilateral semidirect product decompositions of transformation monoids." *Semigroup Forum*. 82 (2011): 271-287. Abstract

"The rank of the semigroup of all order-preserving transformations on a finite fence." *Bulletin of the Malaysian Mathematical Sciences Society (DOI: 10.1007/s40840-017-0598-1)*. 42.5 (2019): 2191-2211. AbstractWebsite

"On the monoid of partial isometries of a wheel graph." *Asian-European Journal of Mathematics (DOI 10.1142/S1793557123502388; Online 16 Dec 2023)*. 17.1 (2024): 2350238 (18 pages). AbstractWebsite

"Congruences on monoids of order-preserving or order-reversing transformations on a finite chain." *Glasg. Math. J.*. 47 (2005): 413-424.Website

" "

Presentations for monoids of finite partial isometries." *Semigroup Forum (DOI: 10.1007/s00233-015-9759-4)*. 93.1 (2016): 97-110. AbstractWebsite

"On the cyclic inverse monoid on a finite set." *Asian-European Journal of Mathematics (DOI 10.1142/S1793557124500177; Online 6 Mar 2024)*. 17.2 (2024): 2450017 (16 pages). AbstractWebsite

" "

Oriented transformations on a finite chain: another description." *Commun. Korean Math. Soc. (DOI 10.4134/CKMS.c220272; Online 12 July 2023)*. 38.3 (2023): 725-731. AbstractWebsite

"Congruences on monoids of transformations preserving the orientation of a finite chain." *J. Algebra*. 321 (2009): 743-757.Website

"On the monoid of partial isometries of a finite star graph." *Communications in Algebra (DOI 10.1080/00927872.2022.2121404; Online 14 Sep 2022)*. 51.3 (2023): 1028-1048. AbstractWebsite

"On the rank of semigroups of transformations on a finite set with restricted range." *Algebra Colloquium*. 21.3 (2014): 497-510.authorsfinalversion.pdfWebsite

"Corrigendum on "Oriented transformations on a finite chain: another description" [Commun. Korean Math. Soc. 38 (2023), No. 3, pp. 725-731]." *Commun. Korean Math. Soc. (DOI 10.4134/CKMS.c240008; Online 12 July 2024) *. 39.3 (2024): 643-645. AbstractWebsite

"On the monoids of transformations that preserve the order and a uniform partition." *Communications in Algebra*. 39.8 (2011): 2798-2815.

"