On a geometric combination of functions related to Prékopa–Leindler inequality

نویسندگان

چکیده

We introduce a new operation between nonnegative integrable functions on R n $\mathbb {R}^n$ , that we call geometric combination; it is obtained via mass transportation approach, playing with inverse distribution functions. The main feature of this the Lebesgue integral combination equals mean two separate integrals; as natural consequence, derive functional inequality Prékopa–Leindler type. When applied to characteristic measurable sets, their provides set whose volume volumes. In framework convex bodies, by comparing 0-sum, get an alternative proof log-Brunn–Minkowski for unconditional bodies and symmetries.

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ژورنال

عنوان ژورنال: Mathematika

سال: 2023

ISSN: ['2041-7942', '0025-5793']

DOI: https://doi.org/10.1112/mtk.12192