Quivers with relations for symmetrizable Cartan matrices V. Caldero-Chapoton formula

Abstract

We generalize the Caldero-Chapoton formula for cluster algebras of finite type to the skew-symmetrizable case. This is done by replacing representation categories of Dynkin quivers by categories of locally free modules over certain Iwanaga-Gorenstein algebras introduced in Part I. The proof relies on the realization of the positive part of the enveloping algebra of a simple Lie algebra of the same finite type as a convolution algebra of constructible functions on representation varieties of $H$, given in Part III. Along the way, we obtain a new result on the PBW basis of this convolution algebra.

24 pages. V2: Exposition improved and a few typos fixed after referee report. Final version, to appear in Proc. London Math. Soc

References in corpus (1)

• Quivers with relations for symmetrizable Cartan matrices IV: Crystal graphs and semicanonical functions

Cited by in corpus (3)

• PBW parametrizations and generalized preprojective algebras
• Deformed Cartan matrices and generalized preprojective algebras I: Finite type
• Cluster algebras arising from cluster tubes I: integer vectors