Definition of positively closed classes by endomorphism semigroups
Diskretnaya Matematika, Tome 24 (2012) no. 4, pp. 19-26
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@article{DM_2012_24_4_a1,
author = {S. S. Marchenkov},
title = {Definition of positively closed classes by endomorphism semigroups},
journal = {Diskretnaya Matematika},
pages = {19--26},
publisher = {mathdoc},
volume = {24},
number = {4},
year = {2012},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DM_2012_24_4_a1/}
}
S. S. Marchenkov. Definition of positively closed classes by endomorphism semigroups. Diskretnaya Matematika, Tome 24 (2012) no. 4, pp. 19-26. http://geodesic.mathdoc.fr/item/DM_2012_24_4_a1/