Recollements and tilting objects

LA Hügel, S Koenig, Q Liu - Journal of Pure and Applied Algebra, 2011 - Elsevier
We study connections between recollements of the derived category D (ModR) of a ring R
and tilting theory. We first provide constructions of tilting objects from given recollements …

Good tilting modules and recollements of derived module categories

H Chen, C Xi - Proceedings of the London Mathematical Society, 2012 - academic.oup.com
Let T be an infinitely generated tilting module of projective dimension at most one over an
arbitrary associative ring A, and let B be the endomorphism ring of T. We prove that if T is …

On the abundance of silting modules

LA Hügel - Surveys in Representation Theory of Algebras” …, 2018 - books.google.com
Silting modules are abundant. Indeed, they parametrise the definable torsion classes over a
noetherian ring, and the hereditary torsion pairs of finite type over a commutative ring. Also …

Tilting modules arising from ring epimorphisms

L Angeleri Hügel, J Sánchez - Algebras and Representation Theory, 2011 - Springer
We show that a tilting module T over a ring R admits an exact sequence 0→ R→ T 0→ T 1→
0 such that T_0,T_1∈Add(T) and Hom R (T 1, T 0)= 0 if and only if T has the form S⊕ S/R for …

[HTML][HTML] Silting modules and ring epimorphisms

LA Hügel, F Marks, J Vitória - Advances in Mathematics, 2016 - Elsevier
There are well-known constructions relating ring epimorphisms and tilting modules. The new
notion of silting module provides a wider framework for studying this interplay. To every …

Universal localizations via silting

F Marks, J Št'ovíček - Proceedings of the Royal Society of Edinburgh …, 2019 - cambridge.org
We show that silting modules are closely related with localizations of rings. More precisely,
every partial silting module gives rise to a localization at a set of maps between countably …

Jordan–Hölder theorems for derived module categories of piecewise hereditary algebras

LA Hügel, S Koenig, Q Liu - Journal of Algebra, 2012 - Elsevier
A Jordan–Hölder theorem is established for derived module categories of piecewise
hereditary algebras, in particular for representations of quivers and for hereditary abelian …

On the uniqueness of stratifications of derived module categories

LA Hügel, S Koenig, Q Liu - Journal of Algebra, 2012 - Elsevier
Recollements of triangulated categories may be seen as exact sequences of such
categories. Iterated recollements of triangulated categories are analogues of geometric or …

Tilting modules over tame hereditary algebras

L Angeleri Hügel, J Sánchez - Journal für die reine und angewandte …, 2013 - degruyter.com
We give a complete classification of the infinite dimensional tilting modules over a tame
hereditary algebra R. We start our investigations by considering tilting modules of the form …

When are definable classes tilting and cotilting classes?

S Bazzoni - Journal of Algebra, 2008 - Elsevier
It is known that tilting classes are of finite type, while cotilting classes are not always of
cofinite type. We investigate this phenomenon. By using a bijection between definable …