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相关论文: On $\tau$-tilting modules over trivial extensions …

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In this paper we define almost gentle algebras. They are monomial special multiserial algebras generalizing gentle algebras. We show that the trivial extension of an almost gentle algebra by its minimal injective co-generator is a symmetric…

表示论 · 数学 2019-04-10 Edward L. Green , Sibylle Schroll

We study (support) $\tau$-tilting modules over the trivial extensions of finite dimensional algebras. More precisely, we construct two classes of (support)$\tau$-tilting modules in terms of the adjoint functors which extend and generalize…

表示论 · 数学 2022-02-21 Zhi-Wei Li , Xiaojin Zhang

We study 2-term tilting complexes of Brauer tree algebras in terms of simplicial complexes. We show the symmetry and convexity of the simplicial complexes as lattice polytopes. Via a geometric interpretation of derived equivalences, we show…

表示论 · 数学 2020-02-05 Hideto Asashiba , Yuya Mizuno , Ken Nakashima

We show that two well-studied classes of tame algebras coincide: namely, the class of symmetric special biserial algebras coincides with the class of Brauer graph algebras. We then explore the connection between gentle algebras and…

表示论 · 数学 2015-08-13 Sibylle Schroll

For $A$ a gentle algebra, and $X$ and $Y$ string modules, we construct a combinatorial basis for Hom($X,\tau Y$). We use this to describe support $\tau$-tilting modules for $A$. We give a combinatorial realization of maps in both directions…

Let $B$ be an one-point extension of a finite dimensional $k$-algebra $A$ by a simple $A$-module at a source point $i$. In this paper, we classify the $\tau$-tilting modules over $B$. Moreover, it is shown that there are equations $$|\tilt…

表示论 · 数学 2021-02-03 Hanpeng Gao

In this paper, motivated by a $\tau$-tilting version of the Brauer-Thrall Conjectures, we study general properties of band modules and their endomorphisms in the module category of a finite dimensional algebra. As an application we describe…

表示论 · 数学 2020-12-22 Sibylle Schroll , Hipolito Treffinger , Yadira Valdivieso

It is proved that a multiset of permissible arcs over a tiling is uniquely determined by its intersection vector under a mild condition. This generalizes a classical result over marked surfaces with triangulations. We apply this result to…

表示论 · 数学 2023-10-06 Changjian Fu , Shengfei Geng

In this article, gentle algebras are realised as tiling algebras, which are associated to partial triangulations of unpunctured surfaces with marked points on the boundary. This notion of tiling algebras generalise the notion of Jacobian…

表示论 · 数学 2018-03-16 Karin Baur , Raquel Coelho Simoes

Cluster-tilted algebras are trivial extensions of tilted algebras. This correspondence induces a surjective map from tilted algebras to cluster-tilted algebras. If B is a cluster-tilted algebra, we use the fibre of B under this map to study…

表示论 · 数学 2009-12-03 Ibrahim Assem , Thomas Bruestle , Ralf Schiffler

For a finite-dimensional gentle algebra, it is already known that the functorially finite torsion classes of its category of finite-dimensional modules can be classified using a combinatorial interpretation, called maximal non-crossing sets…

表示论 · 数学 2020-09-23 Aaron Chan , Laurent Demonet

This paper gives two results on the simple modules for the Brauer algebra over the complex field. First we describe the module structure of the restriction of all simple modules. Second we give a new geometrical interpretation of Ram and…

表示论 · 数学 2012-06-01 Maud De Visscher , Paul P. Martin

The class of support $\tau$-tilting modules was introduced to provide a completion of the class of tilting modules from the point of view of mutations. In this article we study $\tau$-tilting finite algebras, i.e. finite dimensional…

表示论 · 数学 2019-02-13 Laurent Demonet , Osamu Iyama , Gustavo Jasso

Let $A$ be the one point extension of an algebra $B$ by a projective $B$-module. We prove that the extension of a given support $\tau$-tilting $B$-module is a support $\tau$-tilting $A$-module; and, conversely, the restriction of a given…

表示论 · 数学 2017-05-23 Pamela Suarez

Comparing the module categories of an algebra and of the endomorphism algebra of a given support $\tau$-tilting module, we give a generalization of the Brenner-Butler's tilting theorem in the framework of $\tau$-tilting theory. Afterwards…

表示论 · 数学 2018-05-08 Hipolito Treffinger

Motivated by an observation in "Vertices, sources and Green correspondents of the simple modules for the large Mathieu groups", J. of Algebra 322, we determine the source algebra, and therefore all the structure, of the blocks without…

群论 · 数学 2010-04-13 Lluis Puig , Yuanyang Zhou

We give a complete description of a basis of the extension spaces between indecomposable string and quasi-simple band modules in the module category of a gentle algebra.

表示论 · 数学 2020-01-27 Ilke Canakci , David Pauksztello , Sibylle Schroll

We prove a theorem which gives a bijection between the support $\tau$-tilting modules over a given finite-dimensional algebra $A$ and the support $\tau$-tilting modules over $A/I$, where $I$ is the ideal generated by the intersection of the…

表示论 · 数学 2020-03-26 Florian Eisele , Geoffrey Janssens , Theo Raedschelders

In this work, we introduce a new class of algebras called skew-Brauer graph algebras, which generalize the well-known Brauer graph algebras. We establish that skew-Brauer graph algebras are symmetric and can be defined using a Brauer graph…

表示论 · 数学 2025-11-24 Ana García Elsener , Victoria Guazzelli , Yadira Valdivieso

It is demonstrated that any almost-tilting module over a gentle algebra is indeed partial-tilting, meaning it can be completed as a tilting module. Furthermore, such a module has at most $2n$ possible complements, thereby confirming a…

表示论 · 数学 2025-05-01 Wen Chang
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