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Sharp bounds for Neuman means by harmonic, arithmetic, and contraharmonic means. (English) Zbl 07023296
Summary: We give several sharp bounds for the Neuman means $$N_{A H}$$ and $$N_{H A}$$ ($$N_{C A}$$ and $$N_{A C}$$) in terms of harmonic mean $$H$$ (contraharmonic mean $$C$$) or the geometric convex combination of arithmetic mean $$A$$ and harmonic mean $$H$$ (contraharmonic mean $$C$$ and arithmetic mean $$A$$) and present a new chain of inequalities for certain bivariate means.
Reviewer: Reviewer (Berlin)

##### MSC:
 26 Real functions 65 Numerical analysis
Full Text:
##### References:
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