Geodesic
Convexity of the inverse function
The Teaching of Mathematics, XI (2008) no. 1, p. 21 .

Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

This note answers the following question: Having an invertible convex real valued function $f\:A\rightarrow R$, what can be said about convexity of $f^{-1}$?
Classification : 00A35 I20 I40
Keywords: Convex function, inverse function, continuity, first derivative, second derivative. 
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     author = {Mila Mr\v{s}evi\'c},
     title = {Convexity of the inverse function},
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}
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Mila Mršević. Convexity of the inverse function. The Teaching of Mathematics, XI (2008) no. 1, p. 21 . http://geodesic.mathdoc.fr/item/TM2_2008_XI_1_a1/