English
Related papers

Related papers: Tilting objects on some global quotient stacks

200 papers

This is the second paper of a series of papers on a version of categories $\mathcal{O}$ for root-reductive Lie algebras. Let $\mathfrak{g}$ be a root-reductive Lie algebra over an algebraically closed field $\mathbb{K}$ of characteristic…

Representation Theory · Mathematics 2020-12-03 Thanasin Nampaisarn

We show that for two quivers without oriented cycles related by a BGP reflection, the posets of their cluster tilting objects are related by a simple combinatorial construction, which we call a flip-flop. We deduce that the posets of…

Representation Theory · Mathematics 2007-10-16 Sefi Ladkani

In this paper, we provide a new method for constructing tilting objects in a triangulated category via recollements. The $p$-cycle approach to exceptional curve processes significant advantages in constructing recollements and ladders, due…

Representation Theory · Mathematics 2025-10-06 Qiang Dong , Hongxia Zhang

In this paper, we aim to provide a notion of "relative objects", i.e. objects equipped with some sort of subobjects, in differential topology. In spite of active researches relating them, e.g. knot theory or the theory of manifolds with…

Geometric Topology · Mathematics 2017-03-08 Jun Yoshida

We prove that if two abelian varieties have equivalent derived categories then the derived categories of the smooth stacks associated to the corresponding Kummer varieties are equivalent as well. The second main result establishes necessary…

Algebraic Geometry · Mathematics 2007-05-23 Paolo Stellari

We prove that the dg category of perfect complexes on a smooth, proper Deligne-Mumford stack over a field of characteristic zero is geometric in the sense of Orlov, and in particular smooth and proper. On the level of triangulated…

Algebraic Geometry · Mathematics 2018-08-14 Daniel Bergh , Valery A. Lunts , Olaf M. Schnürer

We show the existence of classes of non-tiling domains satisfying P\'{o}lya's conjecture in any dimension, in both the Euclidean and non-Euclidean cases. This is a consequence of a more general observation asserting that if a domain…

Spectral Theory · Mathematics 2025-07-01 Pedro Freitas , Isabel Salavessa

We introduce a class of orders on $P^d$ called Geigle-Lenzing orders and show that they have tilting bundles. Moreover we show that their module categories are equivalent to the categories of coherent sheaves on Geigle-Lenzing spaces…

Representation Theory · Mathematics 2015-08-13 Osamu Iyama , Boris Lerner

Let $T_R$ be a right $n$-tilting module over an arbitrary associative ring $R$. In this paper we prove that there exists a $n$-tilting module $T'_R$ equivalent to $T_R$ which induces a derived equivalence between the unbounded derived…

Rings and Algebras · Mathematics 2009-05-25 S. Bazzoni , F. Mantese , A. Tonolo

We show that a tilting module over the endomorphism algebra of a cluster-tilting object in a 2-Calabi-Yau triangulated category lifts to a cluster-tilting object in this 2-Calabi-Yau triangulated category. This generalizes a recent work of…

Representation Theory · Mathematics 2007-12-29 Changjian Fu , Pin Liu

In this note, we generalize results of Donagi and Pantev on twisted derived equivalences between elliptically fibered surfaces to higher dimensions. First, we establish a twisted derived equivalence between torsors under abelian schemes…

Algebraic Geometry · Mathematics 2026-03-13 Moritz Hartlieb , Saket Shah

Recent results by Keller and Nicol{\'a}s and by Koenig and Yang have shown bijective correspondences between suitable classes of t-structures and co-t-structures with certain objects of the derived category: silting objects. On the other…

Representation Theory · Mathematics 2013-11-12 Qunhua Liu , Jorge Vitoria , Dong Yang

We prove that indecomposable transjective modules over cluster-tilted algebras are uniquely determined by their dimension vectors. Similarly, we prove that for cluster-concealed algebras, rigid modules lifting to rigid objects in the…

Representation Theory · Mathematics 2012-02-28 Ibrahim Assem , Grégoire Dupont

By a result of Orlov there always exists an embedding of the derived category of a finite-dimensional algebra of finite global dimension into the derived category of a high-dimensional smooth projective variety. In this article we give some…

Algebraic Geometry · Mathematics 2017-08-28 Pieter Belmans , Theo Raedschelders

We define mutation on coloured quivers associated to tilting objects in higher cluster categories. We show that this operation is compatible with the mutation operation on the tilting objects. This gives a combinatorial approach to tilting…

Representation Theory · Mathematics 2008-09-20 Aslak Bakke Buan , Hugh Thomas

We study connections between recollements of the derived category D(Mod-R) of a ring R and tilting theory. We first provide constructions of tilting objects from given recollements, recovering several different results from the literature.…

Representation Theory · Mathematics 2009-08-17 Lidia Angeleri Hügel , Steffen König , Qunhua Liu

Assuming a lower bound on the dimension, we prove a long standing conjecture concerning the classification of global solutions of the obstacle problem with unbounded coincidence sets.

Analysis of PDEs · Mathematics 2022-08-08 Simon Eberle , Henrik Shahgholian , Georg S. Weiss

This is a survey on recent developments in Cohen-Macaulay representations via tilting and cluster tilting theory. We explain triangle equivalences between the singularity categories of Gorenstein rings and the derived (or cluster)…

Representation Theory · Mathematics 2018-05-15 Osamu Iyama

This paper is mainly about an early result that the orbifold stack is globally representable via some $ \infty $-categorical techniques.

Algebraic Geometry · Mathematics 2021-09-07 Jiajun Dai

We show that every tilting module of projective dimension one over a ring R is associated in a natural way to the universal localization (in the sense of Schofield) of R at a set of finitely presented modules of projective dimension one. We…

Representation Theory · Mathematics 2009-08-17 Lidia Angeleri Hügel , Maria Archetti