Neuman, Edward Wilker and Huygens type inequalities for some elementary functions and Eulerian numbers. (English) Zbl 1323.26020 Adv. Stud. Contemp. Math., Kyungshang 25, No. 2, 189-194 (2015). MSC: 26D05 11B68 05A20 26E60 PDFBibTeX XMLCite \textit{E. Neuman}, Adv. Stud. Contemp. Math., Kyungshang 25, No. 2, 189--194 (2015; Zbl 1323.26020)
Neuman, Edward Inequalities involving Eulerian numbers. (English) Zbl 1301.05035 Adv. Stud. Contemp. Math., Kyungshang 23, No. 2, 309-314 (2013). MSC: 05A20 05A05 11B68 11B75 41A15 PDFBibTeX XMLCite \textit{E. Neuman}, Adv. Stud. Contemp. Math., Kyungshang 23, No. 2, 309--314 (2013; Zbl 1301.05035)
Neuman, Edward; Sándor, József Bounds for the quotients of differences of certain bivariate means. (English) Zbl 1277.26060 Adv. Stud. Contemp. Math., Kyungshang 23, No. 1, 61-67 (2013). MSC: 26E60 26D20 33E05 PDFBibTeX XMLCite \textit{E. Neuman} and \textit{J. Sándor}, Adv. Stud. Contemp. Math., Kyungshang 23, No. 1, 61--67 (2013; Zbl 1277.26060)