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Related papers: Tubular cluster algebras I: categorification

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We use the representation theory of preprojective algebras to construct and study certain cluster algebras related to semisimple algebraic groups.

Representation Theory · Mathematics 2019-03-05 Christof Geiss , Bernard Leclerc , Jan Schröer

We study the dependence of a cluster algebra on the choice of coefficients. We write general formulas expressing the cluster variables in any cluster algebra in terms of the initial data; these formulas involve a family of polynomials…

Rings and Algebras · Mathematics 2007-05-23 Sergey Fomin , Andrei Zelevinsky

We prove that mutation of cluster-tilting objects in triangulated 2-Calabi-Yau categories is closely connected with mutation of quivers with potentials. This gives a close connection between 2-CY-tilted algebras and Jacobian algebras…

Representation Theory · Mathematics 2012-10-30 Aslak Bakke Buan , Osamu Iyama , Idun Reiten , David Smith

In this paper we construct a tilting sheaf for Severi-Brauer Varieties and Involution Varieties. This sheaf relates the derived category of each variety to the derived category of modules over a ring whose semisimple component consists of…

Algebraic Geometry · Mathematics 2012-04-04 Mark Blunk

We classify self-injective radical cube zero algebras with respect to whether they satisfy certain finite generation conditions sufficient to have a fruitful theory of support varieties defined via Hochschild cohomology in the vein of…

Representation Theory · Mathematics 2024-11-26 Mads Hustad Sandøy

The classification of Nichols algebras is an essential step in the classification theory of pointed Hopf algebras by lifting method of N. Andruskiewitsch and H.-J. Schneider. Arithmetic root systems are invariants of Nichols algebras of…

Quantum Algebra · Mathematics 2025-12-08 L. J. Lei , C. Yuan , C. Qian , J. Wang

In this note we give an account of recent progress on the construction of holomorphic vertex algebras as cyclic orbifolds as well as related topics in lattices and modular categories. We present a novel computation of the Schur indicator of…

Quantum Algebra · Mathematics 2018-03-14 Jethro van Ekeren

We introduce and study kernel algebras, i.e., algebras in the category of sheaves on a square of a scheme, where the latter category is equipped with a monoidal structure via a natural convolution operation. We show that many interesting…

Algebraic Geometry · Mathematics 2009-01-01 Alexander Polishchuk

We propose a skein model for the quantum cluster algebras of surface type with coefficients. We introduce a skein algebra $\mathscr{S}_{\Sigma,\mathbb{W}}^{A}$ of a walled surface $(\Sigma,\mathbb{W})$, and prove that it has a quantum…

Geometric Topology · Mathematics 2024-08-23 Tsukasa Ishibashi , Shunsuke Kano , Wataru Yuasa

We show that having any planar (cyclic or acyclic) directed network on a disc with the only condition that all $n_1+m$ sources are separated from all $n_2+m$ sinks, we can construct a cluster-algebra realization of elements of an affine…

Mathematical Physics · Physics 2020-12-22 Leonid O. Chekhov

In the present paper, we introduce two-dimensional categorified Hall algebras of smooth curves and smooth surfaces. A categorified Hall algebra is an associative monoidal structure on the stable $\infty$-category…

Algebraic Geometry · Mathematics 2022-11-22 Mauro Porta , Francesco Sala

We study rank-2 cluster scattering diagrams through moduli spaces of quiver representations and a recently developed combinatorial framework of tight gradings. Combining quiver-theoretic and combinatorial methods, we prove and extend a…

Combinatorics · Mathematics 2025-11-19 Amanda Burcroff , Kyungyong Lee , Lang Mou , Gregg Musiker , Markus Reineke

We generalize to the non simply-laced case results of Gei\ss, Leclerc and Schr\"oer about the cluster structure of the coordinate ring of the maximal unipotent subgroups of simple Lie groups. In this way, cluster structures in the non…

Representation Theory · Mathematics 2013-02-12 Laurent Demonet

Based on a fact that complex Clifford algebras of even dimension are isomorphic to the matrix ones, we consider bundles in Clifford algebras whose structure group is a general linear group acting on a Clifford algebra by left…

Mathematical Physics · Physics 2016-02-12 G. Sardanashvily , A. Yarygin

We introduce a class of non-commutative algebras that carry a non-commutative (geometric) cluster structure which are generated by identical copies of generalized Weyl algebras. Equivalent conditions for the finiteness of the set of the…

Representation Theory · Mathematics 2016-05-13 Ibrahim Saleh

We generalize the construction of the bracelet and bangle bases defined by Musiker, Schiffler and Williams, and the band basis defined by D. Thurston to cluster algebras arising from orbifolds. We prove that the bracelet bases are positive,…

Combinatorics · Mathematics 2019-10-25 Anna Felikson , Pavel Tumarkin

In \cite{CK2005} and \cite{SZ}, the authors constructed the bases of cluster algebras of finite types and of type $\widetilde{A}_{1,1}$, respectively. In this paper, we will deduce $\mathbb{Z}$-bases for cluster algebras of affine types.

Representation Theory · Mathematics 2010-05-18 Ming Ding , Jie Xiao , Fan Xu

We introduce admissible group actions on cluster algebras, cluster categories and quivers with potential and study the resulting orbit spaces. The orbit space of the cluster algebra has the structure of a generalized cluster algebra. This…

Representation Theory · Mathematics 2018-12-21 Charles Paquette , Ralf Schiffler

We consider skew-symmetrizable (upper) cluster algebras with a compatible Poisson structure, called $\mathsf{\Lambda}$-(upper) cluster algebras. For any two good elements (e.g., cluster monomials) in a $\mathsf{\Lambda}$-upper cluster…

Representation Theory · Mathematics 2025-10-07 Peigen Cao

We introduce a quotient of the affine Temperley-Lieb category that encodes all weight-preserving linear maps between finite-dimensional sl(2)-representations. We study the diagrammatic idempotents that correspond to projections onto…

Representation Theory · Mathematics 2017-01-11 Hoel Queffelec , Paul Wedrich
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