[PDF][PDF] APPROXIMATIONS OF MODULES (LECTURE NOTES FOR NMAG531)

JAN TRLIFAJ - 2023 - karlin.mff.cuni.cz
… notions of projective (pre-)covers and injective envelopes. We … a projective resolution R of T
consisting of finitely generated … -Gorenstein rings (which generalizes n-Gorenstein rings from …

Buchweitz's equivalences for Gorenstein flat modules with respect to semidualizing modules

J Hu, Y Geng, J Wu, H Li - Journal of Algebra and Its Applications, 2021 - World Scientific
… Auslander and Buchweitz [1] studied the ideas of injective envelopes and projective covers
… of finitely generated Gorenstein projective modules for a Gorenstein ring R, where D …

Trivial extensions of abelian categories and applications to rings: an expository account

R Fossum, P Griffith, I Reiten - Ring Theory, 1972 - Elsevier
projective or injective, and to know the injective envelopes of … Applications to dominant
dimension and Gorenstein rings In … finitely generated (= coherent) reflexive modules over a finite

Cohen-Macaulay and Gorenstein artin algebras

M Auslander, I Reiten - Representation Theory of Finite Groups and Finite …, 1991 - Springer
Gorenstein if and only if the finitely generated modules have fillite G-dimension, a result already
shown for commutative rings … not have the property that its injective envelope is projective

Gorenstein flat covers and Gorenstein cotorsion modules over integral group rings

E Enochs, S Estrada, B Torrecillas - Algebras and representation theory, 2005 - Springer
… is a satisfactory theory of Gorenstein projective, injective and flat modules over these rings
(… CZ(T ) the cotorsion envelope of a ZG-module as a Z-module and by CZG(T ) the cotorsion …

When do Foxby classes coincide with the classes of modules of finite Gorenstein dimensions?

D Bennis, JR Garcia Rozas, L Oyonarte - 2016 - projecteuclid.org
… –Macaulay ring admitting a dualizing module. He proved that the finitely generated modules
in … 3 to the problem of the existence of (pre)covers and (pre)envelopes relative to the class of …

[引用][C] Existence of Exact Zero Divisors and Totally Reflexive Modules in Artinian Rings

BS Poudyal - 2017 - University of Texas at Arlington

[PDF][PDF] Socle reductions and socle projective modules

D Simson - Journal of Algebra, 1986 - core.ac.uk
… socle projective modules mod,,(R) over right multipeak rings R … (X) the injective envelope,
the projective cover, the socle and … any finitely generated projective module and any module

Flat covers over commutative rings

J Xu, J Xu - Flat Covers of Modules, 1996 - Springer
envelopes, we know that over such rings every modules has … local ring R, all finite generated
modules and Artinian modules … we will use flat covers to characterize Gorenstein modules.) …

Duality, Canonical Modules, and Gorenstein Rings

D Eisenbud, D Eisenbud - Commutative Algebra: with a View Toward …, 1995 - Springer
… : If M is a finitely generated A-module, we provisionally define … is the injective envelope of k
= 8/(XI, ... ,xr ) as an 8-module. In … If these conditions are satisfied, we say that M is a maximal …