Geodesic
A generalization of Qi's inequality for sums
Kragujevac Journal of Mathematics, Tome 33 (2010) no. 1 
Huan-nan Shi. A generalization of Qi's inequality for sums. Kragujevac Journal of Mathematics, Tome 33 (2010) no. 1. http://geodesic.mathdoc.fr/item/KJM_2010_33_1_a8/
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     author = {Huan-nan Shi},
     title = {A generalization of {Qi's} inequality for sums},
     journal = {Kragujevac Journal of Mathematics},
     pages = {101 - 106},
     year = {2010},
     volume = {33},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/KJM_2010_33_1_a8/}
}
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Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

By a majorization method, a pair of inequalities for sums of nonnegative se- quences are established, and so an open problem posed by F. Qi is resolved.