activity
19962026
most citedQuantum cluster characters of Hall algebras

19 citations · 143 across the 45 of their papers we have counts for

collaborators

50 papers

math.QA2026

Artin monoids, their homomorphisms and twins

Arkady Berenstein, Jacob Greenstein, Jian-Rong Li

Motivated by the twin homomorphism problem for Coxeter groups and the corresponding Hecke monoids, we find a large class of its solutions originating from standard homomorphisms of…

math.RT2026

Hecke monoids, their homomorphisms and parabolicity

Arkady Berenstein, Jacob Greenstein, Jian-Rong Li

We study homomorphisms of Hecke monoids, notably parabolic homomorphisms, which map parabolic elements to parabolic elements, and injective ones. The importance of the first class…

math.QA2026

Monomial bialgebras

Arkady Berenstein, Jacob Greenstein, Jian-Rong Li

Starting from a single solution of QYBE (or CYBE) we produce an infinite family of solutions of QYBE (or CYBE) parametrized by transitive arrays and, in particular, by signed permu…

math.RT2025

Noncommutative marked surfaces II: tagged triangulations, clusters, and their symmetries

Arkady Berenstein, Min Huang, Vladimir Retakh

The aim of the paper is to define noncommutative cluster structure on several algebras related to marked surfaces possibly with orbifold points of various orders, wh…

math.RT2025

Multiple Horn problems for planar networks and invertible matrices

Anton Alekseev, Arkady Berenstein, Anfisa Gurenkova +1

The multiplicative multiple Horn problem is asking to determine possible singular values of the combinations and for a triple of invertible matrices with giv…

math.RT2024

Hecke and Artin monoids and their homomorphisms

Arkady Berenstein, Jacob Greenstein, Jian-Rong Li

The aim of the present work is to systematically study homomorphisms of Hecke and Artin monoids and thus to develop their comprehensive theory. Our original motivation was the stri…