Refinements of bounds for Neuman means
Summary: We present sharp bounds for the Neuman means \(S_{H A}\), \(S_{A H}\), \(S_{C A}\) and \(S_{A C}\) in terms of the arithmetic, harmonic, and contraharmonic means. Our results are the refinements or improvements of the results given by \textit{E. Neuman} [J. Math. Inequal. 6, No. 4, 637--643 (2012; Zbl 1257.26013); J. Math. Inequal. 8, No. 2, 359--368 (2014; Zbl 1295.26032)].
scientific article; zbMATH DE number 7022209