Classification of real modules in monoidal categorifications of cluster algebras

Fuente: arXiv
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Main Authors: Duan, Bing, Schiffler, Ralf
Format: Preprint
Published: 2025
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_version_ 1866914232574935040
author Duan, Bing
Schiffler, Ralf
author_facet Duan, Bing
Schiffler, Ralf
contents In this paper, we propose a conjectural formula for the highest $\ell$-weight monomial of an arbitrary real module over a simply-laced quantum affine algebra. We verify the conjecture under a multiplicative reachability condition, answering the Hernandez--Leclerc classification problem in monoidal categorifications of cluster algebras under this condition. Moreover, we introduce the notion of cluster modules, generalizing Kirillov--Reshetikhin modules and Hernandez--Leclerc modules as special cases. We prove that cluster modules are reachable real modules, and obtain a system of equations governing $q$-characters of the prime cluster modules, providing a natural generalization of both the classical T-system relations for Kirillov--Reshetikhin modules and the exchange relations for Hernandez--Leclerc modules.
format Preprint
id arxiv_https___arxiv_org_abs_2512_16107
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Classification of real modules in monoidal categorifications of cluster algebras
Duan, Bing
Schiffler, Ralf
Representation Theory
Quantum Algebra
Rings and Algebras
13F60, 16G20, 17B37
In this paper, we propose a conjectural formula for the highest $\ell$-weight monomial of an arbitrary real module over a simply-laced quantum affine algebra. We verify the conjecture under a multiplicative reachability condition, answering the Hernandez--Leclerc classification problem in monoidal categorifications of cluster algebras under this condition. Moreover, we introduce the notion of cluster modules, generalizing Kirillov--Reshetikhin modules and Hernandez--Leclerc modules as special cases. We prove that cluster modules are reachable real modules, and obtain a system of equations governing $q$-characters of the prime cluster modules, providing a natural generalization of both the classical T-system relations for Kirillov--Reshetikhin modules and the exchange relations for Hernandez--Leclerc modules.
title Classification of real modules in monoidal categorifications of cluster algebras
topic Representation Theory
Quantum Algebra
Rings and Algebras
13F60, 16G20, 17B37
url https://arxiv.org/abs/2512.16107