Czechoslovak Mathematical Journal, Vol. 67, No. 2, pp. 379-387, 2017
Yetter-Drinfeld-Long bimodules are modules
Daowei Lu, Shuanhong Wang
Received December 9, 2015. First published March 3, 2017.
Abstract: Let $H$ be a finite-dimensional bialgebra. In this paper, we prove that the category $\mathcal{LR}(H)$ of Yetter-Drinfeld-Long bimodules, introduced by F. Panaite, F. Van Oystaeyen (2008), is isomorphic to the Yetter-Drinfeld category $^{H\otimes H^*}_{H\otimes H^*}\mathcal{YD}$ over the tensor product bialgebra $H\otimes H^*$ as monoidal categories. Moreover if $H$ is a finite-dimensional Hopf algebra with bijective antipode, the isomorphism is braided. Finally, as an application of this category isomorphism, we give two results.
Affiliations: Daowei Lu (corresponding author), Department of Mathematics, Jining University, No. 1 Xingtan Road, Qufu 273155, Shandong, P. R. of China, e-mail: ludaowei620@126.com; Shuanhong Wang, School of Mathematics, Southeast University, No. 2 Sipailou, Nanjing 210096, Jiangsu, P. R. of China, e-mail: shuanhwang@seu.edu.cn
