$t$-quantized Cartan matrix and R-matrices for cuspidal modules over quiver Hecke algebras

Abstract

As every simple module of a quiver Hecke algebra appears as the image of the R-matrix defined on the convolution product of certain cuspidal modules, knowing the $\mathbb{Z}$-invariants of the R-matrices between cuspidal modules is quite significant. In this paper, we prove that the $(q,t)$-Cartan matrix specialized at $q=1$ of an arbitrary finite type, called the $t$-quantized Cartan matrix, informs us of the invariants of R-matrices. To prove this, we use combinatorial AR-quivers associated with Dynkin quivers and their properties as crucial ingredients.

71 pages

References in corpus (4)

• Isomorphisms among quantum Grothendieck rings and propagation of positivity
• Twisted and folded Auslander-Reiten quivers and applications to the representation theory of quantum affine algebras
• The $(q,t)$-Cartan matrix specialized at $q=1$
• Deformed Cartan matrices and generalized preprojective algebras I: Finite type

Cited by in corpus (1)

• Deformed Cartan matrices and generalized preprojective algebras II: General type