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Schur convexity of Gnan mean for two variables. (English) Zbl 1269.26011
Summary: The convexity and Schur convexity of the Gnan mean and its dual form in two variables are discussed.
MSC:
26D15 Inequalities for sums, series and integrals
26A51 Convexity of real functions in one variable, generalizations
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