On covers

Citation
L. Bican et B. Torrecillas, On covers, J ALGEBRA, 236(2), 2001, pp. 645-650
Citations number
9
Categorie Soggetti
Mathematics
Journal title
JOURNAL OF ALGEBRA
ISSN journal
00218693 → ACNP
Volume
236
Issue
2
Year of publication
2001
Pages
645 - 650
Database
ISI
SICI code
0021-8693(20010215)236:2<645:OC>2.0.ZU;2-8
Abstract
In this note a sufficient condition for the existence of flat covers of mod ules is given. In a special case when flat modules have "enough" flat submo dules (especially if the class of flat modules is hereditary), the necessit y of the condition is also proved. All results are proved in a more general setting. (C) 2001 Academic Press.