Graded cluster algebras
WebSep 27, 2013 · A categorification of Grassmannian cluster algebras. We describe a ring whose category of Cohen–Macaulay modules provides an additive categorification of the cluster algebra structure on the homogeneous coordinate ring of the Grassmannian of k ‐planes in n ‐space. More precisely, there is a cluster character defined on the category … Web3 Multi-graded seeds and cluster algebras The natural definition for a multi-graded seed is as follows. Definition 3.1 A multi-graded seed is a triple (x,B,G) such that (a) (x = (X1,...,Xr),B) is a seed of cardinality r and (b) G is an r ×d integer matrix such that BT G = 0. From now on, we use the term “graded” to encompass multi-graded ...
Graded cluster algebras
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Webthe theory of cluster algebras gradings are. Thestructureofthispaperisasfollows.Webeginwithabriefexpositionofthedef-initionofa(multi … Web4 N. Hanihara Theorem 1.2 (Theorem 4.6(4)). Let R be a graded bimodule (𝑑+1)-CY algebra of a-invariant a satisfying (R0) and (R1). Then the subcategory add{𝑅(−𝑖)[𝑖] 𝑖∈Z}⊂qperZ𝑅is a (𝑑+𝑎)-cluster tilting subcategory. For example, by setting R to be the polynomial ring with standard positive grading, we deduce that the derived category of coherent sheaves over the ...
WebMar 1, 2014 · In this work, our main aim is to bring these three parts of cluster algebra theory together, to study graded quantum cluster algebras of infinite rank. More specifically, Assem, Dupont and Schiffler ([1]) have introduced a category Clus of rooted cluster algebras. The objects of Clus are pairs consisting of a cluster algebra and a … WebFor finite type, it can be regarded as an un-graded analogue of Jacobian algebra of certain quiver with potential appeared in the theory of (monoidal) categorification of cluster algebras. In this talk, we will present an interpretation of graded structures of the preprojective algebra of general type, in terms of a multi-parameter deformation ...
Webgraded (dg) categories. It is motivated by the study of Calabi-Yau categorifications of cluster algebras. We refer the reader to [B. Keller, in Triangulated categories, 76–160, London Math. Soc. ... Amiot, Cluster categories for algebras of global dimension 2 and quivers with potential, Ann. Inst. Fourier 59 (2009), no. 6, 2525–2590 ... WebGraded seeds and graded quantum cluster algebras. Berenstein and Zelevinsky [3, Definition 6.5] have given a definition of graded quantum seeds, which give rise to module gradings but not algebra gradings. In what follows, we will have need of algebra gradings on quantum cluster algebras and so we now give a different definition of a graded ...
WebTheorem 1. Let Rbe an artinian standard graded algebra and M a nitely gen-erated graded R-module, generated in a single degree. If Exti R (M;M) = 0 = Exti R (M;R) for all i>0, then Mis free. Our second result concerns Gorenstein rings. The hypothesis of the following theorem is known to be satis ed by generic standard graded Gorenstein algebras
WebIt is shown that many results on cluster algebras (the Laurent phenomenon, the classification of finite-type cluster algebras) extend to the quantum case. The important open problem is to show that quantum cluster monomials have non-negative coefficients. The paper under review deals with skew-symmetric acyclic quantum cluster algebras. The including prepositionWebWe consider gradings on cluster algebras generated by 3 × 3 skew-symmetric matrices. We show that, except in one particular case, mutation-cyclic matrices give rise to … including priceWebMay 19, 2015 · Building on work by Kontsevich and Soibelman, Nagao, and Efimov, we use this result to prove the quantum positivity conjecture for cluster mutations for all quivers … including preposition examplesWebSep 24, 2013 · In the cluster algebra literature, the notion of a graded cluster algebra has been implicit since the origin of the subject. In this work, we wish to bring this aspect of … incantation buddha face revealWebIn the cluster algebra literature, the notion of a graded cluster algebra has been implicit since the origin of the subject. In this work, we wish to bring this aspect of cluster algebra theory to the foreground and promote its study. We transfer a ... including privacy policiesWebMar 24, 2024 · Graded Algebra. If is a graded module and there exists a degree-preserving linear map , then is called a graded algebra. Cohomology is a graded algebra. In … including private sector partners pgpWebSep 24, 2013 · Abstract: In the cluster algebra literature, the notion of a graded cluster algebra has been implicit since the origin of the subject. In this work, we wish to bring … including providing