| Title: | On $x$-operators in an arbitrary semigroup (English) | 
| Author: | Pilecka-Oborska, Barbara | 
| Author: | Serafin, Stanisław | 
| Language: | English | 
| Journal: | Archivum Mathematicum | 
| ISSN: | 0044-8753 (print) | 
| ISSN: | 1212-5059 (online) | 
| Volume: | 21 | 
| Issue: | 1 | 
| Year: | 1985 | 
| Pages: | 13-22 | 
| . | 
| Category: | math | 
| . | 
| Keyword: | general closure operator; closure operator; modification of a closure operator; semigroup; left (right) partial x-operator in a semigroup; partial x-operator in a semigroup; x-extension (left, right) of a partial x-operator (left, right) | 
| MSC: | 06A15 | 
| MSC: | 20M12 | 
| idZBL: | Zbl 0581.20061 | 
| idMR: | MR818303 | 
| . | 
| Date available: | 2008-06-06T06:14:14Z | 
| Last updated: | 2012-05-09 | 
| Stable URL: | http://hdl.handle.net/10338.dmlcz/107211 | 
| . | 
| Reference: | [1] L. Skula: On extensions of partial x-operators.Czechoslovak Mathematical Journal, 26 (191) 1976, Praha, (p. 477-505). MR 0414765 | 
| . |