[PDF][PDF] SIGMA-PURE-INJECTIVE OBJECTS, CHARACTERISATIONS AND CLASSIFICATIONS FROM REPRESENTATION THEORY
R BENNETT-TENNENHAUS - profs.scienze.univr.it
… hand, flat cotorsion right modules have right cotorsion endomor… of totally acyclic complexes
of projective modules, evaluated in I, is equivalent to the category of totally acyclic complexes …
of projective modules, evaluated in I, is equivalent to the category of totally acyclic complexes …
Gorenstein weak global dimension is symmetric
LW Christensen, S Estrada… - Mathematische …, 2021 - Wiley Online Library
… The invariant is built on the theory of Gorenstein flat-cotorsion … An acyclic complex T of
flat-cotorsion A-modules is called totally acyclic if Hom A ( T , F ) is acyclic for every flat-cotorsion A-…
flat-cotorsion A-modules is called totally acyclic if Hom A ( T , F ) is acyclic for every flat-cotorsion A-…
Homology theories and Gorenstein dimensions for complexes
L Liang - Algebras and Representation Theory, 2021 - Springer
… ◦ -modules and the class FC of flat and cotorsion R ◦ -modules are closed under extensions
and direct summands, and FC is a cogenerator for GF in the sense of Auslander and …
and direct summands, and FC is a cogenerator for GF in the sense of Auslander and …
Bounded complexes of cotorsion sheaves
E Hosseini - Communications in Algebra, 2017 - Taylor & Francis
… every flat quasi-coherent sheaf has finite cotorsion dimension… dg-CofX)) is a complete cotorsion
theory in K(FlatX) where K(… category of dg-cotorsion complexes of flat 𝒪 X -modules. This …
theory in K(FlatX) where K(… category of dg-cotorsion complexes of flat 𝒪 X -modules. This …
Generalized Gorenstein modules
A Iacob - Algebra Colloquium, 2022 - World Scientific
… the right half of a hereditary cotorsion pair. If moreover the ring … (−,T), with T any flat module.
The Ding projective and the Ding … the A-acyclic complexes of injectives to the exact A-acyclic …
The Ding projective and the Ding … the A-acyclic complexes of injectives to the exact A-acyclic …
Flat quasi-coherent sheaves as direct limits, and quasi-coherent cotorsion periodicity
L Positselski, J Stovicek - arXiv preprint arXiv:2212.09639, 2022 - arxiv.org
… complexes of flat quasi-coherent sheaves on a scheme X: arbitrary complexes of flats, acyclic
complexes of flats with flat … of this paper are based on category theory. Let κ be a regular …
complexes of flats with flat … of this paper are based on category theory. Let κ be a regular …
Five theorems on Gorenstein global dimensions
LW Christensen, S Estrada, P Thompson - arXiv preprint arXiv:2203.12375, 2022 - arxiv.org
… Z is a cokernel in an acyclic complex of strongly cotorsion modules; we first … flat-cotorsion if
there exists a totally acyclic complex F of flat-… –cotorsion theory, Categorical, Homological and …
there exists a totally acyclic complex F of flat-… –cotorsion theory, Categorical, Homological and …
Gorenstein flat phantom morphisms
J Asadollahi, S Hemat, R Vahed - Communications in Algebra, 2020 - Taylor & Francis
… theory on an additive exact category ( A , E ) . This … acyclic complex F of flat R-modules
is called totally acyclic if, … G F -phantom precover with cotorsion-flat kernel for each R -module. …
is called totally acyclic if, … G F -phantom precover with cotorsion-flat kernel for each R -module. …
Tate cohomology for complexes with finite Gorenstein AC-injective dimension
J Xing, T Zhao, Y Li, J Hu - Bulletin of the Iranian Mathematical Society, 2019 - Springer
… projective, injective and flat modules and developed Gorenstein … }})\) is a complete hereditary
cotorsion pair by [5, Lemma 5.6 … 4, we study the Tate cohomology theories with respect to …
cotorsion pair by [5, Lemma 5.6 … 4, we study the Tate cohomology theories with respect to …
Virtually Gorenstein rings and relative homology of complexes
Z Di, L Liang, J Wang - Journal of Pure and Applied Algebra, 2023 - Elsevier
… cotorsion pair ( dg X , Y ) in the category of R ∘ -complexes; … is acyclic for every injective R
∘ -module E. An R-module M is called Gorenstein flat if there exists a F-totally acyclic complex …
∘ -module E. An R-module M is called Gorenstein flat if there exists a F-totally acyclic complex …