Abstract
It is shown that if $f$ is $n$-convex then the four $n$th order Peano derivates of $f$ are respectively equal to the corresponding $n$th order approximate Peano derivates and the porosity Peano derivates of $f$. It is further shown that the same result holds for the de la Vall\'ee Poussin derivates, and the symmetric and unsymmetric Riemann derivates.
Citation
S. Mitra. "Derivates, Approximate Derivates and Porosity Derivates of n-Convex Functions." Real Anal. Exchange 27 (1) 249 - 260, 2001/2002.
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