共 25 条
[11]
Coherent rings and absolutely pure precovers
[J].
COMMUNICATIONS IN ALGEBRA,
2019, 47 (11)
:4743-4748
[13]
Flat covers and flat representations of quivers
[J].
COMMUNICATIONS IN ALGEBRA,
2004, 32 (04)
:1319-1338
[14]
Enochs E.E., 2002, Covers, envelopes and cotorsion theories
[15]
Enochs E.E., 2000, Relative Homological Algebra
[19]
Lam T.Y., 1999, GRADUATE TEXTS MATH, V189, DOI DOI 10.1017/CBO9780511546525
[20]
Mac Lane S., 1963, HOMOLOGY