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In this paper, we study two-sided tilting complexes of preprojective algebras of Dynkin type. We construct the most fundamental class of two-sided tilting complexes, which has a group structure by derived tensor products and induces a group…

Representation Theory · Mathematics 2019-01-21 Yuya Mizuno

We study silting objects over derived preprojective algebras of acyclic quivers by giving a direct relationship between silting objects, spherical twist functors and mutations. Especially, for a Dynkin quiver, we establish a bijection…

Representation Theory · Mathematics 2025-06-10 Yuya Mizuno , Dong Yang

Using only the combinatorics of its defining ribbon graph, we classify the two-term tilting complexes, as well as their indecomposable summands, of a Brauer graph algebra. As an application, we determine precisely the class of Brauer graph…

Representation Theory · Mathematics 2018-01-08 Takahide Adachi , Takuma Aihara , Aaron Chan

We provide a far reaching derived equivalence classification of the cluster-tilted algebras of Dynkin type D and suggest standard forms for the derived equivalence classes. We believe that the classification is complete, but some subtle…

Representation Theory · Mathematics 2015-03-17 Janine Bastian , Thorsten Holm , Sefi Ladkani

This paper studies silted algebras, namely, endomorphism algebras of 2-term silting complexes, over path algebras of Dynkin quivers. We will describe an algorithm to produce all basic 2-term silting complexes over the path algebra of a…

Representation Theory · Mathematics 2021-06-03 Ruoyun Xing

Let $\Q$ be the quiver of Dynkin type $\mathbb{A}_n$ with linear orientation and $A_{n}=k\Q$. In this paper, we give a complete classification of the silted algebras of type $A_{n}$ by using the geometric models of gentle algebras. We show…

Representation Theory · Mathematics 2024-09-06 Yu-Zhe Liu , Houjun Zhang

We show how a cluster-tilted algebra of finite representation type is related to the corresponding tilted algebra, in the case of algebras defined over an algebraically closed field.

Representation Theory · Mathematics 2007-05-23 Aslak Bakke Buan , Idun Reiten

In this paper, we give a complete classification of silted algebras for the quiver $\overrightarrow{\mathbb{A}}_{n}$ of type $\mathbb{A}_{n}$ with linear orientation and for the quiver obtained from $\overrightarrow{\mathbb{A}}_{n}$ by…

Representation Theory · Mathematics 2025-04-22 Zongzhen Xie , Dong Yang , Houjun Zhang

In this paper, we study two-term tilting complexes for preprojective algebras of non-Dynkin type. We show that there exist two families of two-term tilting complexes, which are respectively parameterized by the elements of the corresponding…

Representation Theory · Mathematics 2019-11-21 Yuta Kimura , Yuya Mizuno

In this paper, we use the stable categories of some selfinjective algebras to describe the singularity categories of the cluster-tilted algebras of Dynkin type. Furthermore, in this way, we settle the problem of singularity equivalence…

Representation Theory · Mathematics 2014-09-23 Xinhong Chen , Shengfei Geng , Ming Lu

We study support $\tau$-tilting modules over preprojective algebras of Dynkin type. We classify basic support $\tau$-tilting modules by giving a bijection with elements in the corresponding Weyl groups. Moreover we show that they are in…

Representation Theory · Mathematics 2013-12-04 Yuya Mizuno

First, we give a new example of silting-discrete algebras. Second, one explores when the algebra of triangular matrices over a finite dimensional algebra is $\tau$-tilting finite. In particular, we classify algebras over which triangular…

Representation Theory · Mathematics 2021-03-16 Takuma Aihara , Takahiro Honma

We investigate cluster tilting objects (and subcategories) in triangulated 2-Calabi-Yau categories and related categories. In particular we construct a new class of such categories related to preprojective algebras of non Dynkin quivers…

Representation Theory · Mathematics 2014-01-14 Aslak Bakke Buan , Osamu Iyama , Idun Reiten , Jeanne Scott

If A is a finite-dimensional symmetric algebra, then it is well-known that the only silting complexes in $\mathrm{K^b}(\mathrm{proj}A)$ are the tilting complexes. In this note we investigate to what extent the same can be said for weakly…

Representation Theory · Mathematics 2021-01-11 Jenny August , Alex Dugas

The Dynkin algebras are the hereditary artin algebras of finite representation type. The paper exhibits the number of support-tilting modules for any Dynkin algebra. Since the support-tilting modules for a Dynkin algebra correspond…

Representation Theory · Mathematics 2015-09-28 Mustafa A. A. Obaid , S. Khalid Nauman , Wafaa M. Fakieh , Claus Michael Ringel

We obtain a complete derived equivalence classification of the cluster-tilted algebras of Dynkin type E. There are 67, 416, 1574 algebras in types E6, E7 and E8 which turn out to fall into 6, 14, 15 derived equivalence classes,…

Representation Theory · Mathematics 2013-05-27 Janine Bastian , Thorsten Holm , Sefi Ladkani

An important result in tilting theory states that a class of modules over a ring is a tilting class if and only if it is the Ext-orthogonal class to a set of compact modules of bounded projective dimension. Moreover, cotilting classes are…

Representation Theory · Mathematics 2017-04-24 Frederik Marks , Jorge Vitória

We give a proof, based on the rigidity of tilting complexes, that the class of self-injective finite-dimensional algebras over an algebraically closed field is closed under derived equivalence.

Representation Theory · Mathematics 2013-11-05 Salah Al-Nofayee , Jeremy Rickard

In this paper, we introduce the notion of $\nu$-stable silting-discrete algebras, which unify silting-discrete algebras and tilting-discrete self-injective algebras, where $\nu$ is a triangle auto-equivalence of the bounded homotopy…

Representation Theory · Mathematics 2021-06-01 Takahide Adachi , Ryoichi Kase

We give an overview of recent developments in silting theory. After an introduction on torsion pairs in triangulated categories, we discuss and compare different notions of silting and explain the interplay with t-structures and…

Representation Theory · Mathematics 2019-06-19 Lidia Angeleri Hügel
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