| Title:
             | 
Direct decomposability of tolerances and congruences on semigroups (English) | 
| Author:
             | 
Pondělíček, Bedřich | 
| Language:
             | 
English | 
| Journal:
             | 
Czechoslovak Mathematical Journal | 
| ISSN:
             | 
0011-4642 (print) | 
| ISSN:
             | 
1572-9141 (online) | 
| Volume:
             | 
38 | 
| Issue:
             | 
4 | 
| Year:
             | 
1988 | 
| Pages:
             | 
701-704 | 
| . | 
| Category:
             | 
math | 
| . | 
| MSC:
             | 
08A30 | 
| MSC:
             | 
20M14 | 
| idZBL:
             | 
Zbl 0668.08002 | 
| idMR:
             | 
MR962913 | 
| DOI:
             | 
10.21136/CMJ.1988.102265 | 
| . | 
| Date available:
             | 
2008-06-09T15:24:16Z | 
| Last updated:
             | 
2020-07-28 | 
| Stable URL:
             | 
http://hdl.handle.net/10338.dmlcz/102265 | 
| . | 
| Reference:
             | 
[1] Chajda I., Zelinka В.: Lattices of tolerances.Čas. pěst. mat. 102 (1977), 10-24. Zbl 0354.08011, MR 0450152 | 
| Reference:
             | 
[2] Fraser G. A., Horn A.: Congruence relations in direct products.Proc. Am. Math. Soc. 26(1970), 390-394. Zbl 0241.08004, MR 0265258, 10.1090/S0002-9939-1970-0265258-1 | 
| Reference:
             | 
[3] Chajda I., Zelinka В.: Tolerance relations on direct products of monoids and distributive lattices.Glasnik mat. 14 (1979), 11-16. Zbl 0408.08001, MR 0544056 | 
| Reference:
             | 
[4] Chajda I., Nieminen J.: Direct decomposability of tolerances on lattices, semilattices and quasilattices.Czech. Math. J. 32(107) 1982, 110-115. Zbl 0491.08003, MR 0646716 | 
| Reference:
             | 
[5] Clifford A. H., Preston G. В.: The algebraic theory of semigroups.Amer. Math. Soc., Providence, R. I. Vol. I (1961); Vol. II (1967). Zbl 0111.03403 | 
| Reference:
             | 
[6] Petrich M.: Introduction to Semigroups.Merill Publishing Company, 1973. Zbl 0321.20037, MR 0393206 | 
| . |