Geodesic
On a problem by Shapiro.
Elemente der Mathematik, Tome 45 (1990) no. 6, pp. 137-139.

Voir la notice de l'article provenant de la source European Digital Mathematics Library

Mots-clés : cyclic sum, H. S. Shapiro's problem, cyclic inequality 
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     author = {E.S. Freidkin and S.A. Freidkin},
     title = {On a problem by {Shapiro.}},
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     pages = {137--139},
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     volume = {45},
     number = {6},
     year = {1990},
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}
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E.S. Freidkin; S.A. Freidkin. On a problem by Shapiro.. Elemente der Mathematik, Tome 45 (1990) no. 6, pp. 137-139. http://geodesic.mathdoc.fr/item/ELMA_1990__45_6_141491/