On global C-dimensions
W Li, L Yan, B Ouyang - JOURNAL OF MATHEMATICS, 2019 - projecteuclid.org
Let R be a ring and M the left or right R-module category. Let C be a class of R-modules,
closed under extensions, finite direct sums, direct summands and isomorphisms. Suppose …
closed under extensions, finite direct sums, direct summands and isomorphisms. Suppose …
Relative weak derived functors
P Prabakaran - Commentationes Mathematicae Universitatis Carolinae, 2020 - dml.cz
Let $ R $ be a ring, $ n $ a fixed non-negative integer, ${\mathscr {WI}} $ the class of all left $
R $-modules with weak injective dimension at most $ n $, and ${\mathscr {WF}} $ the class …
R $-modules with weak injective dimension at most $ n $, and ${\mathscr {WF}} $ the class …
On global -dimensions
W Li, L Yan, B Ouyang - 2019 - projecteuclid.org
Let R be a ring and M the left or right R-module category. Let C be a class of R-modules,
closed under extensions, finite direct sums, direct summands and isomorphisms. Suppose …
closed under extensions, finite direct sums, direct summands and isomorphisms. Suppose …
On --rings and -coherent rings
W Li - International Electronic Journal of Algebra - dergipark.org.tr
Let n and d be non-negative integers. We introduce the concept of strongly (n,d)-injective
modules to characterize n-coherent rings. For a right perfect ring R, it is shown that R is right …
modules to characterize n-coherent rings. For a right perfect ring R, it is shown that R is right …