[HTML][HTML] Simples in a cotilting heart

L Angeleri Hügel, I Herzog, R Laking - Mathematische Zeitschrift, 2024 - Springer
Every cotilting module over a ring R induces a t-structure with a Grothendieck heart in the
derived category D (Mod-R). We determine the simple objects in this heart and their injective …

On hearts which are module categories

CE Parra, M Saorín - Journal of the Mathematical Society of Japan, 2016 - jstage.jst.go.jp
Given a torsion pair t=(T, F) in a module category R-Mod we give necessary and sufficient
conditions for the associated Happel–Reiten–Smalø t-structure in D (R) to have a heart Ht …

The 𝑡-structure induced by an 𝑛-tilting module

S Bazzoni - Transactions of the American Mathematical Society, 2019 - ams.org
We study the $ t $-structure induced by an $ n $-tilting module $ T $ in the derived category
$\mathcal {D}(R) $ of a ring $ R $. Our main objective is to determine when the heart of the …

Pure projective tilting modules

S Bazzoni, I Herzog, P Příhoda, J Šaroch… - Documenta …, 2020 - content.ems.press
Let TR be a 1-tilting module with tilting torsion pair (Gen T, F) in Mod-R. The following
conditions are proved to be equivalent:(1) T is pure projective;(2) Gen T is a definable …

[引用][C] Tilting modules and torsion theories

M Hoshino - Bulletin of the London Mathematical Society, 1982 - academic.oup.com
In [5] Brenner-Butler first introduced the notion of a tilting module in a rather restrictive form,
and in [6] Happel-Ringel generalized their work and extensively developed the theory of …

Topological endomorphism rings of tilting complexes

M Hrbek - Journal of the London Mathematical Society, 2024 - Wiley Online Library
In a compactly generated triangulated category, we introduce a class of tilting objects
satisfying a certain purity condition. We call these the decent tilting objects and show that the …

[HTML][HTML] Direct limits in the heart of a t-structure: the case of a torsion pair

CE Parra, M Saorín - Journal of pure and applied algebra, 2015 - Elsevier
We study the behavior of direct limits in the heart of a t-structure. We prove that, for any
compactly generated t-structure in a triangulated category with coproducts, countable direct …

On the heart of a faithful torsion theory

R Colpi, E Gregorio, F Mantese - Journal of Algebra, 2007 - Elsevier
In [R. Colpi, KR Fuller, Tilting objects in abelian categories and quasitilted rings, Trans.
Amer. Math. Soc., in press] tilting objects in an arbitrary abelian category H are introduced …

Tilting preenvelopes and cotilting precovers

L Angeleri Hügel, A Tonolo, J Trlifaj - Algebras and Representation …, 2001 - Springer
We relate the theory of envelopes and covers to tilting and cotilting theory, for (infinitely
generated) modules over arbitrary rings. Our main result characterizes tilting torsion classes …

t-Structures and cotilting modules over commutative noetherian rings

L Angeleri Hügel, M Saorín - Mathematische Zeitschrift, 2014 - Springer
For a commutative noetherian ring\(R\), we establish a bijection between the resolving
subcategories consisting of finitely generated\(R\)-modules of finite projective dimension …