TY  - JOUR
A1  - Dimitrova, Ilinka
A1  - Fernandes, Vitor H.
A1  - Koppitz, Jörg
T1  - The maximal subsemigroups of semigroups of transformations preserving or reversing the orientation on a finite chain
JF  - Publicationes mathematicae
N2  - The study of the semigroups OPn, of all orientation-preserving transformations on an n-element chain, and ORn, of all orientation-preserving or orientation-reversing transformations on an n-element chain, has began in [17] and [5]. In order to bring more insight into the subsemigroup structure of OPn and ORn, we characterize their maximal subsemigroups.
KW  - finite transformation semigroup
KW  - orientation-preserving and orientation-reversing transformations
KW  - maximal subsemigroups
Y1  - 2012
U6  - https://doi.org/10.5486/PMD.2012.4897
SN  - 0033-3883
VL  - 81
IS  - 1-2
SP  - 11
EP  - 29
PB  - Institutum Mathematicum Universitatis Debreceniensis, Debreceni Tudományegyetem Matematikai Intézete
CY  - Debrecen
ER  -