activity
20182026
collaborators

8 papers

math.QA2026

BiHom-L-R-smash biproduct and BiHom-Yetter-Drinfel'd-Long category

Dongdong Yan, Xiaoqian Liu

In this article, we first introduce the notion of BiHom-L-R--smash biproduct over a BiHom-Hopf algebra, denoted by , where $m,n,p,q,s,t,u,v\i…

math.QA2026

BiHom-four-angle Hopf modules and BiHom-Yetter-Drinfel'd modules

Dongdong Yan, Xiaoqian Liu

In this paper, we introduce the notion of four-angle Hopf modules over a BiHom-Hopf algebra . We show that the category of BiHom-four-angle Hopf…

math.NT2021

Stable free lattices in residually reducible Galois deformations and control theorem of Selmer groups

Dong Yan

In this paper, we study the graph of homothety classes of stable free lattices in a two-dimensional representation over a local UFD. This generalizes a classical result of the case…

math.RA2020

Four-angle Hopf modules for Hom-Hopf algebras

Xiaoqian Liu, Dongdong Yan, Xuchen Deng +1

In this paper, we introduce the notion of a four-angle Hopf module for a Hom-Hopf algebra and show that the category of four-angle Hopf mod…

math.QA2020

The Drinfel'd codouble constuction for monoidal Hom-Hopf algebra

Dongdong Yan, Shuanhong Wang

Let be a monoidal Hom-Hopf algebra with the bijective antipode , In this paper, we mainly construct the Drinfel'd codouble $T(H)=(H^{op}\otimes H^{*}, β\otimes β^{*-1})…

math.RA2019

Symmetries in Yetter-Drinfel'd-Long categories

Dongdong Yan, Shuanhong Wang

Let be a Hopf algebra and the category of Yetter-Drinfel'd-Long bimodules over . We first give sufficient and necessary conditions for to…

math.NT2019

Stable -free lattices and the two-variable algebraic -adic -functions in residually reducible Hida deformation

Dong Yan

This paper is a continuation of the author's previous work, where we studied the variation of the number of isomorphic classes of -stable lattices in p-adic familie…

math.NT2018

Stable lattices in modular Galois representations and Hida deformation

Dong Yan

In this paper, we discuss the variation of the numbers of the isomorphic classes of stable lattices when the weight and the level varies in a Hida deformation by using the Kubota-L…