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arXiv · 2404.13723

On Popoviciu's concept of convexity for functions of $d$ variables

Andrzej Komisarski·Teresa Rajba
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Abstract

We establish an integral representation for Popoviciu's convex functions of $d$ variables. This representation serves as a~foundation for deriving several functional inequalities, analogous to those well-known for usual convex functions. Our results generalize and extend the results obtained by S.~Gal, C.~Niculescu, B.~Gavrea, T.~Popoviciu, and others, who considered only differentiable functions of two variables. In contrast to other authors, we do not impose any additional regularity assumptions on the studied functions.

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Andrzej Komisarski, Teresa Rajba. 2024-04-21. On Popoviciu's concept of convexity for functions of $d$ variables. https://arxiv.org/abs/2404.13723

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