@article{102265, author = {Bed\v rich Pond\v el\'\i \v cek}, title = {Direct decomposability of tolerances and congruences on semigroups}, journal = {Czechoslovak Mathematical Journal}, volume = {38}, year = {1988}, pages = {701-704}, zbl = {0668.08002}, mrnumber = {962913}, language = {en}, url = {http://dml.mathdoc.fr/item/102265} }
Pondělíček, Bedřich. Direct decomposability of tolerances and congruences on semigroups. Czechoslovak Mathematical Journal, Tome 38 (1988) pp. 701-704. http://gdmltest.u-ga.fr/item/102265/
Lattices of tolerances, Čas. pěst. mat. 102 (1977), 10-24. (1977) | MR 0450152 | Zbl 0354.08011
Congruence relations in direct products, Proc. Am. Math. Soc. 26(1970), 390-394. (1970) | Article | MR 0265258 | Zbl 0241.08004
Tolerance relations on direct products of monoids and distributive lattices, Glasnik mat. 14 (1979), 11-16. (1979) | MR 0544056 | Zbl 0408.08001
Direct decomposability of tolerances on lattices, semilattices and quasilattices, Czech. Math. J. 32(107) 1982, 110-115. (1982) | MR 0646716 | Zbl 0491.08003
The algebraic theory of semigroups, Amer. Math. Soc., Providence, R. I. Vol. I (1961); Vol. II (1967). (1961) | Zbl 0111.03403
Introduction to Semigroups, Merill Publishing Company, 1973. (1973) | MR 0393206 | Zbl 0321.20037