Auslander-Buchweitz context and co-t-structures

O Mendoza, EC Sáenz, V Santiago… - arXiv preprint arXiv …, 2010 - arxiv.org
We show that the relative Auslander-Buchweitz context on a triangulated category $\T $
coincides with the notion of co-$ t $-structure on certain triangulated subcategory of $\T …

[HTML][HTML] Silting theory in triangulated categories with coproducts

P Nicolás, M Saorín, A Zvonareva - Journal of Pure and Applied Algebra, 2019 - Elsevier
We introduce the notion of noncompact (partial) silting and (partial) tilting sets and objects in
any triangulated category D with arbitrary (set-indexed) coproducts. We show that …

Torsion pairs in silting theory

L Angeleri Hügel, F Marks, J Vitória - Pacific Journal of Mathematics, 2017 - msp.org
In the setting of compactly generated triangulated categories, we show that the heart of a
(co) silting t-structure is a Grothendieck category if and only if the (co) silting object satisfies …

Gluing silting objects

Q Liu, J Vitória, D Yang - Nagoya Mathematical Journal, 2014 - cambridge.org
Recent results by Keller and Nicolás and by Koenig and Yang have shown bijective
correspondences between suitable classes of t-structures and cot-structures with certain …

Derived equivalences induced by nonclassical tilting objects

L Fiorot, F Mattiello, M Saorín - Proceedings of the American Mathematical …, 2017 - ams.org
Suppose that $\mathcal {A} $ is an abelian category whose derived category $\mathcal
{D}(\mathcal {A}) $ has $ Hom $ sets and arbitrary (small) coproducts, let $ T $ be a (not …

Co-t-structures, cotilting and cotorsion pairs

D Pauksztello, A Zvonareva - Mathematical Proceedings of the …, 2023 - cambridge.org
Let be a triangulated category with shift functor. Suppose is a co-t-structure with coheart and
extended coheart, which is an extriangulated category. We show that there is a bijection …

Auslander–Buchweitz approximation theory for triangulated categories

O Mendoza Hernández, EC Sáenz Valadez… - Applied Categorical …, 2013 - Springer
We introduce and develop an analogous of the Auslander–Buchweitz approximation theory
(see Auslander and Buchweitz, Societe Mathematique de France 38: 5–37, 1989) in the …

t-Structures with Grothendieck hearts via functor categories

M Saorín, J Št'ovíček - Selecta Mathematica, 2023 - Springer
We study when the heart of at-structure in a triangulated category D with coproducts is AB5
or a Grothendieck category. If D satisfies Brown representability, at-structure has an AB5 …

Auslander--Reiten theory in extriangulated categories

O Iyama, H Nakaoka, Y Palu - arXiv preprint arXiv:1805.03776, 2018 - arxiv.org
The notion of an extriangulated category gives a unification of existing theories in exact or
abelian categories and in triangulated categories. In this article, we develop Auslander …

[PDF][PDF] Witt groups of derived categories

B Youssin - K-theory, 1997 - academia.edu
We define the notion of cobordism of two objects in a triangulated category, and the Witt
group of such category is defined as the Grothendieck group of cobordism classes of self …