• LUNQUN OUYANG

      Articles written in Proceedings – Mathematical Sciences

    • Special properties of Hurwitz series rings

      LUNQUN OUYANG KEXIN ZHENG QIONG ZHOU YUEMING XIANG

      More Details Abstract Fulltext PDF

      In this paper, we study some properties of the Hurwitz series ring $H R$ (resp. Hurwitz polynomial ring $h R$), such as the flatness or the faithful flatness of $H R/(f)$ (resp. $h R/(f)$), the strongly Hopfian property and the radical property of $H R$ (resp. $h R$). We give some sufficient and necessary conditions for $H R/(f)$ (resp. $h R/(f)$) to be flat or faithful flat. We also prove that the strongly Hopfian property transfer between$R$ and $H R$ (resp. $h R$), and some radicals of $H R$ can be determined in terms of those of $R$, in case $R$ satisfies some additional conditions.

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