Geodesic
On Log-Convexity for Differences of Mixed Symmetric Means
Matematičeskie zametki, Tome 88 (2010) no. 6, pp. 811-821.

Voir la notice de l'article provenant de la source Math-Net.Ru

Recently S. Simić has proved log-convexity for differences of power means. We prove a generalization of his result. Namely, log-convexity for differences of mixed symmetric means is proved.
Keywords: log-convexity, mixed means, symmetric power means. 
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M. Anwar; J. Pečarić. On Log-Convexity for Differences of Mixed Symmetric Means. Matematičeskie zametki, Tome 88 (2010) no. 6, pp. 811-821. http://geodesic.mathdoc.fr/item/MZM_2010_88_6_a1/

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