Constructing the maximal monoids in the semigroups ${𝒩}_{n},{𝒮}_{n}$, and ${\Omega }_{n}$
Compositio Mathematica, Tome 32 (1976) no. 1, pp. 41-52.
@article{CM_1976__32_1_41_0,
author = {Hartfiel, D. J. and Maxson, Carlton J.},
title = {Constructing the maximal monoids in the semigroups $\mathcal {N}_n, \mathcal {S}_n$, and $\Omega _n$},
journal = {Compositio Mathematica},
pages = {41--52},
publisher = {Noordhoff International Publishing},
volume = {32},
number = {1},
year = {1976},
zbl = {0326.20060},
language = {en},
url = {http://www.numdam.org/item/CM_1976__32_1_41_0/}
}
Hartfiel, D. J.; Maxson, C. J. Constructing the maximal monoids in the semigroups $\mathcal {N}_n, \mathcal {S}_n$, and $\Omega _n$. Compositio Mathematica, Tome 32 (1976) no. 1, pp. 41-52. http://www.numdam.org/item/CM_1976__32_1_41_0/

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