Wu, Meiyun; Ju, Tengxia; Zhu, Xiaochun; Lin, Sumei Structure analysis of the pointed Hopf algebras on Kleinian group. (Chinese. English summary) Zbl 1289.16060 J. Yangzhou Univ., Nat. Sci. Ed. 16, No. 2, 4-7 (2013). Summary: With the help of quiver and the ramification system with characters of group, the authors construct the pointed Hopf algebras on Kleinian group and calculate the numbers of the non-isomorphic graded Hopf algebras. MSC: 16T05 Hopf algebras and their applications 16G20 Representations of quivers and partially ordered sets Keywords:pointed Hopf algebras; graded Hopf algebras; Kleinian groups; quivers; characters PDFBibTeX XMLCite \textit{M. Wu} et al., J. Yangzhou Univ., Nat. Sci. Ed. 16, No. 2, 4--7 (2013; Zbl 1289.16060)