activity
20212026
collaborators

8 papers

math.RT2026

Modules and operator rings of Reynolds algebras

Jun He, Xiao-Song Peng, Chenghao Zhang +1

We develop a module theory for weighted Reynolds algebras by constructing an associa?tive ring that records the algebra action and the module operator. The categories of left and r…

math.CT2026

Monoidal structure on Rota-Baxter algebras via augmentation, and free cocycle bialgebras

Li Guo, Yunzhou Xie, Yi Zhang

A tensor product is known for commutative Rota--Baxter algebras through a universal construction, but its underlying algebra need not be the ordinary tensor product an…

math.RA2026

Rota-Baxter operators and factorization of Lie affgebras

JiaJia Han, Abror Khudoyberdiyev, Yunzhou Xie +1

We introduce Rota-Baxter operators on Lie affgebras by an identity independent of the choice of origin and prove that they induce descendant Lie affgebra structures. We establish a…

math.QA2025

Generalized Connes-Kreimer Hopf algebras on decorated rooted forests by weighted cocycles

Fei Wang, Li Guo, Yi Zhang

The Connes-Kreimer Hopf algebra of rooted trees is an operated Hopf algebra whose coproduct satisfies the classical Hochschild 1-cocycle condition. In this paper, we extend the set…

math.CO2025

Cocycle weighted infinitesimal bialgebras and pre-Lie algebras on rooted trees

Loïc Foissy, Yunzhou Xie, Dawei Zhang +1

The concept of weighted infinitesimal bialgebras provides an algebraic framework for understanding the non-homogeneous associative Yang-Baxter equation. In this paper, we endow the…

math.RA2025

Moerdijk Hopf algebras of decorated rooted forests: an operated algebra approach

Loic Foissy, Xiao-Song Peng, Yunzhou Xie +1

In this paper, we first endow the space of decorated planar rooted forests with a coproduct that equips it with the structure of a bialgebra and further a Moerdijk Hopf algebra. We…

math.RA2025

Multiple Rota-Baxter algebra and multiple Rota-Baxter modules

Jun He, Xiaosong Peng, Yi Zhang

In this paper, we develop the theory of multiple Rota-Baxter modules over multiple Rota-Baxter algebras. We introduce left, right, and bimodule structures and construct free -op…

math.RA2021

The Cohomology of relative cocycle weighted Reynolds operators and NS-pre-Lie algebras

Guo Shuangjian, Zhang Yi

Unifying various generalizations of the important notions of Reynolds operators, the relative cocycle weighted Reynolds operators are studied. Here cocycle weighted means the weigh…