Iida, Kousuke; Haraoka, Yoshishige Symmetric differential polynomials. (English) Zbl 1381.05085 Kumamoto J. Math. 30, 7-14 (2017). MSC: 05E05 13N99 PDFBibTeX XMLCite \textit{K. Iida} and \textit{Y. Haraoka}, Kumamoto J. Math. 30, 7--14 (2017; Zbl 1381.05085) Full Text: Link
Danchev, Peter V. A note on weakly exchange and weakly clean rings. (English) Zbl 1381.16039 Kumamoto J. Math. 30, 1-6 (2017). MSC: 16U99 PDFBibTeX XMLCite \textit{P. V. Danchev}, Kumamoto J. Math. 30, 1--6 (2017; Zbl 1381.16039) Full Text: Link