Jianzhi Han

activity

20132021

most citedAutomorphism groups of Witt algebras

3 citations · 6 across the 5 of their papers we have counts for

collaborators

7 papers

math.QA2021

Cocommutative vertex bialgebras

Jianzhi Han, Haisheng Li, Yukun Xiao

In this paper, the structure of cocommutative vertex bialgebras is investigated. For a general vertex bialgebra $V$ , it is proved that the set $G (V)$ of group-like elements is natu…

math.RT2019

Non-weight modules over the affine-Virasoro algebra of type $A_{1}$

Qiufan Chen, Jianzhi Han

In this paper, we study a class of non-weight modules over the affine-Virasoro algebra of type $A_{1}$ , which are free modules of rank one when restricted to the Cartan subalgebra (m…

math.RT2017★ 2 cited

A class of non-weight modules over the Virasoro algebra

Haibo Chen, Jianzhi Han

For any triple $(μ, λ, α)$ of complex numbers and an $a$ -module $V$ , a class of non-weight modules $M (V, μ, Ω (λ, α))$ over the Virasoro algebra $\mathcal L…

math.RA2017

Irreducible weight modules with a finite-dimensional weight space over the twisted N=1 Schrödinger-Neveu-Schwarz algebra

Huanxia Fa, Jianzhi Han, Junbo Li

It is shown that there are no simple mixed modules over the twisted N=1 Schrödinger-Neveu-Schwarz algebra, which implies that every irreducible weight module over it with a nontriv…

math.QA2016

Modules over the algebra $V i r (a, b)$

Jianzhi Han, Qiufan Chen, Yucai Su

For any two complex numbers $a$ and $b$ , $V i r (a, b)$ is a central extension of $W (a, b)$ which is universal in the case $(a, b) \neq = (0, 1)$ , where $\mathcal{W}(a,b…

math.QA2015★ 3 cited

Automorphism groups of Witt algebras

Jianzhi Han, Yucai Su

The automorphism groups $Aut A_{n}$ and $Aut W_{n}$ of the polynomial algebra $A_{n} = C [x_{1}, x_{2}, \dots, x_{n}]$ and the rank $n$ Witt algebra $W_{n} = Der A_{n}$ are studied…