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20212026
most citedCluster Modular Groups of Affine and Doubly Extended Cluster Algebras

2 citations · 2 across the 8 of their papers we have counts for

collaborators

8 papers

math.RT2026

Noncommutative Cluster Varieties and Moduli Spaces of Local Systems

Zachary Greenberg, Dani Kaufman, Merik Niemeyer +1

In this article, we construct noncommutative cluster varieties, , for each reduced root system and marked surface simultaneously generalizing the cluster…

math.RT2024

Noncommutative Polygonal Cluster Algebras

Zachary Greenberg, Dani Kaufman, Merik Niemeyer +1

We define a new family of noncommutative generalizations of cluster algebras called polygonal cluster algebras. These algebras generalize the noncommutative surfaces of Berenstein-…

math.CO2024

Multiplicative Inequalities In Cluster Algebras Of Finite Type

Michael Gekhtman, Zachary Greenberg, Daniel Soskin

Generalizing the notion of a multiplicative inequality among minors of a totally positive matrix, we describe, over full rank cluster algebras of finite type, the cone of Laurent m…

math.RA2024

-like Properties of Matrices Over Noncommutative Rings and Generalizations of Markov Numbers

Zachary Greenberg, Dani Kaufman, Anna Wienhard

We study matrices over noncommutative rings with anti-involution, with a special focus on the symplectic group . We define traces and dete…

math.GT2023

Restrictions on Anosov subgroups of Sp(2n,R)

Subhadip Dey, Zachary Greenberg, J. Maxwell Riestenberg

Let and let be a non-empty subset. We prove that if contains an odd integer, then any -Anosov subgroup of ${\rm Sp}(2n,\mathbb{R}…

math.KT2022

Hopf algebras of multiple polylogarithms, and holomorphic 1-forms

Zachary Greenberg, Dani Kaufman, Haoran Li +1

We associate to a multiple polylogarithm a holomorphic 1-form on the universal abelian cover of its domain. We relate the 1-forms to the symbol and variation matrix and show that t…

math.KT2022

The Lie coalgebra of multiple polylogarithms

Zachary Greenberg, Dani Kaufman, Haoran Li +1

We use Goncharov's coproduct of multiple polylogarithms to define a Lie coalgebra over an arbitrary field. It is generated by symbols subject to inductively defined relations, whic…

math.CO2021★ 2 cited

Cluster Modular Groups of Affine and Doubly Extended Cluster Algebras

Dani Kaufman, Zachary Greenberg

We calculate the cluster modular groups of affine and doubly extended typecluster algebras in a uniform way by introducing a new family of quivers. We use this uniformdescription t…