Article
Keywords:
Hopf algebra; Yetter-Drinfeld-Long bimodule; braided monoidal category
Summary:
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.