Geodesic
Ki Fan inequality could be discovered much formerly
Matematičeskoe obrazovanie, Tome 84 (2017) no. 4, pp. 25-27.

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

The Ki Fan inequality is derived by the method presented in a book by Hardy, Littlwood, and Polya dated 1934.
Keywords: Ki Fang inequality, generalized Ki Fang inequality. 
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S. I. Kalinin. Ki Fan inequality could be discovered much formerly. Matematičeskoe obrazovanie, Tome 84 (2017) no. 4, pp. 25-27. http://geodesic.mathdoc.fr/item/MO_2017_84_4_a4/

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