Christopher Olutunde Imoru, "The power mean and the logarithmic mean", International Journal of Mathematics and Mathematical Sciences, vol. 5, Article ID 718951, 7 pages, 1982. https://doi.org/10.1155/S0161171282000313
The power mean and the logarithmic mean
In a very interesting and recent note, Tung-Po Lin  obtained the least value and the greatest value such that is valid for all distinct positive numbers and where The object of this paper is to give a simpler proof than Lin's of a more general result. More precisely, the author obtained the classes of functions and , such that
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