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Related papers: Locally acyclic cluster algebras

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Meta-centralizers of non-locally compact group algebras are studied. Theorems about their representations with the help of families of generalized measures are proved. Isomorphisms of group algebras are investigated in relation with…

Rings and Algebras · Mathematics 2018-12-18 S. V. Ludkovsky

We give a uniform geometric realization for the cluster algebra of an arbitrary finite type with principal coefficients at an arbitrary acyclic seed. This algebra is realized as the coordinate ring of a certain reduced double Bruhat cell in…

Rings and Algebras · Mathematics 2008-05-19 Shih-Wei Yang , Andrei Zelevinsky

In this article, we introduce the notion of cluster automorphism of a given cluster algebra as a $\ZZ$-automorphism of the cluster algebra that sends a cluster to another and commutes with mutations. We study the group of cluster…

Representation Theory · Mathematics 2014-02-26 Ibrahim Assem , Ralf Schiffler , Vasilisa Shramchenko

We initiate a systematic study of the cohomology of cluster varieties. We introduce the Louise property for cluster algebras that holds for all acyclic cluster algebras, and for most cluster algebras arising from marked surfaces. For…

Algebraic Geometry · Mathematics 2022-03-09 Thomas Lam , David E. Speyer

We present here two detailed examples of additive categorifications of the cluster algebra structure of a coordinate ring of a maximal unipotent subgroup of a simple Lie group. The first one is of simply-laced type ($A_3$) and relies on an…

Representation Theory · Mathematics 2017-01-27 Laurent Demonet

We study factoriality and the class groups of locally acyclic cluster algebras. To do so, we introduce a new class of rings called finite Laurent intersection rings (FLIRs), which includes locally acyclic cluster algebras, full-rank upper…

Commutative Algebra · Mathematics 2026-01-13 Mara Pompili , Daniel Smertnig

This thesis studies arithmetic of linear algebraic groups. It involves studying the properties of linear algebraic groups defined over global fields, local fields and finite fields, or more generally the study of the linear algebraic groups…

Group Theory · Mathematics 2007-05-23 Shripad M. Garge

We prove that certain acyclic cluster algebras over the complex numbers are the coordinate rings of holomorphic symplectic manifolds. We also show that the corresponding quantum cluster algebras have no non-trivial prime ideals. This allows…

Quantum Algebra · Mathematics 2012-10-23 Sebastian Zwicknagl

Cluster varieties are geometric objects that have recently found applications in several areas of mathematics and mathematical physics. This thesis studies the geometry of a large class of cluster varieties associated to compact oriented…

Algebraic Geometry · Mathematics 2018-12-27 Dylan G. L. Allegretti

This paper investigates the finite generation of cluster automorphism groups. By applying the pseudo $\mathbb{N}$-grading introduced in our previous work, we establish a sufficient condition for a cluster automorphism group to be finitely…

Rings and Algebras · Mathematics 2026-05-28 Changjian Fu , Zhanhong Liang , Yinzhi Wang

With any non necessarily orientable unpunctured marked surface (S,M) we associate a commutative algebra, called quasi-cluster algebra, equipped with a distinguished set of generators, called quasi-cluster variables, in bijection with the…

Rings and Algebras · Mathematics 2015-02-17 Grégoire Dupont , Frédéric Palesi

In this paper, we study local systems of locally finite associative algebras over fields of characteristic p\ge0. We describe the perfect local systems and study the relation between them and their corresponding locally finite associative…

Rings and Algebras · Mathematics 2021-01-08 Hasan M S Shlaka

Our motivation is to build a systematic method in order to investigate the structure of cluster algebras of geometric type. The method is given through the notion of mixing-type sub-seeds, the theory of seed homomorphisms and the view-point…

Rings and Algebras · Mathematics 2016-08-19 Min Huang , Fang Li , Yichao Yang

We characterize the indecomposable transjective modules over an arbitrary cluster-tilted algebra that do not lie on a local slice, and we provide a sharp upper bound for the number of (isoclasses of) these modules.

Representation Theory · Mathematics 2016-06-17 Ibrahim Assem , Ralf Schiffler , Khrystyna Serhiyenko

Cluster algebras are a class of commutative algebras whose generators are defined by a recursive process called mutation. We give a brief introduction to cluster algebras, and explain how discrete integrable systems can appear in the…

Combinatorics · Mathematics 2019-03-21 Andrew N. W. Hone , Philipp Lampe , Theodoros E. Kouloukas

We classify mutation-finite cluster algebras with arbitrary coefficients of geometric type.

Combinatorics · Mathematics 2023-08-29 Anna Felikson , Pavel Tumarkin

We characterize mutation-finite cluster algebras of rank at least 3 using positive semi-definite quadratic forms. In particular, we associate with every unpunctured bordered surface a positive semi-definite quadratic space $V$, and with…

Combinatorics · Mathematics 2021-01-22 Anna Felikson , John W. Lawson , Michael Shapiro , Pavel Tumarkin

The paper is motivated by an analogy between cluster algebras and Kac-Moody algebras: both theories share the same classification of finite type objects by familiar Cartan-Killing types. However the underlying combinatorics beyond the two…

Combinatorics · Mathematics 2019-03-05 Michael Barot , Christof Geiss , Andrei Zelevinsky

An $F$-algebra $A$ with unit $1$ is said to be a locally matrix algebra if an arbitrary finite collection of elements $a_1,$ $\ldots,$ $a_s $ from $ A$ lies in a subalgebra $B$ with $1$ of the algebra $A$, that is isomorphic to a matrix…

Rings and Algebras · Mathematics 2019-07-29 Oksana Bezushchak , Bogdana Oliynyk

In this paper, we give presentations of the mapping class groups of marked surfaces stabilizing boundaries for any genus. Note that in the existing works, the mapping class groups of marked surfaces were the isotopy classes of…

Geometric Topology · Mathematics 2023-07-31 Jinlei Dong , Fang Li