Classes of modules arising in algebraic geometry

A Slávik - 2020 - dspace.cuni.cz
… is called a cotorsion pair (or a cotorsion theory) provided that … these two complete cotorsion
pairs in the category Ch(Flat(X)… (X)) of F-totally acyclic complexes of very flat quasi-coherent …

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
… In their work, they established their theory in the context of … the C-Gorenstein flat dimension
for complexes. We give … complete hereditary cotorsion pair is the flat cotorsion pair (F, C)…

Homotopy theory of bicomplexes

F Muro Jiménez, C Roitzheim - Journal of Pure and Applied Algebra, 223 …, 2019 - idus.us.es
… are detected by the E2-term of the spectral sequence associated to the filtration of the
total complex by the horizontal degree. We then extend this result to twisted complexes. …

Relative cohomology of complexes II: Vanishing of relative cohomology

Z Liu, Z Di, B Lu - Journal of Algebra, 2021 - Elsevier
… The study of relative cohomology theory of complexes have … flat (resp., Gorenstein flat)
modules by PGF (resp., GF ). … GP ⊥ ) forms a complete cotorsion pair in C ( R ) . Note that the …

Relative singularity categories with respect to Gorenstein flat modules

ZX Di, ZK Liu, XX Zhang - Acta Mathematica Sinica, English Series, 2017 - Springer
… Recall that a pair (X, Y) of subcategories of A is called a cotorsion pair or cotorsion theory
In view of Lemma 2.3, we conclude that every complex admits flat-cotorsion resolutions. …

The 𝑡-structure induced by an 𝑛-tilting module

S Bazzoni - Transactions of the American Mathematical Society, 2019 - ams.org
… of the heart and, imitating the arguments on the theory of derivators used by Štovıcek [Što14], …
complexes and N the class of acyclic complexes, the pair (KP, N) is a complete cotorsion

Homological dimension based on a class of Gorenstein flat modules

G Dalezios, I Emmanouil - Comptes …, 2023 - comptes-rendus.academie-sciences …
… dimension, the relative homological theory based on the class of … flat module is a syzygy of
an acyclic complex of flat modules … The cotorsion pair is complete if for any object A ∈ A there …

A note on homotopy categories of FP-injectives

G Dalezios - arXiv preprint arXiv:1803.01140, 2018 - arxiv.org
… ] on the homotopy category of flat modules. Our proof is based … cotorsion pair on the category
C(FPI(A)) we obtained in 3.4, corresponds (via the aforementioned Hovey–Gillespie theory) …

Recollements from exact model structures and heart constructions in triangulated categories

M Tarantino - 2018 - research.unipd.it
… that starting from a completely hereditary cotorsion pair (A, B) … Flat is the class of flat modules
and follows by Neeman’s [36]. … We will give an overview of the theory of cotorsion pairs and …

Gorenstein injective dimension for complexes and Iwanaga–Gorenstein rings

J Asadollahi, S Salarian - Communications in Algebra®, 2006 - Taylor & Francis
… Such a complex is called a totally acyclic complex of injective modules. The syzygies of
this complex are called … With this notation cotorsion theories are just 1-cotorsion theories. …