Polars and X-ideals in semigroups
Mathematica slovaca, Tome 26 (1976) no. 1, pp. 31-37
@article{MASLO_1976_26_1_a3,
author = {\v{S}marda, Bohumil},
title = {Polars and {X-ideals} in semigroups},
journal = {Mathematica slovaca},
pages = {31--37},
year = {1976},
volume = {26},
number = {1},
mrnumber = {0427506},
zbl = {0325.20063},
language = {en},
url = {http://geodesic.mathdoc.fr/item/MASLO_1976_26_1_a3/}
}
Šmarda, Bohumil. Polars and X-ideals in semigroups. Mathematica slovaca, Tome 26 (1976) no. 1, pp. 31-37. http://geodesic.mathdoc.fr/item/MASLO_1976_26_1_a3/