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The Schur-convexity of Stolarsky and Gini means. (English) Zbl 1140.26307
Summary: We study in a unitary way the Schur-convexity or concavity of the Stolarsky and Gini means \(D_{a,b} (x, y)\) and \(S_{a,b} (x, y)\), for fixed \(x, y > 0\), \(x \neq y\).

MSC:
26D15 Inequalities for sums, series and integrals
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