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Integrals of logarithmically concave functions
V. A. Tomilenko Tomsk State University
Abstract:
In this note we consider integrals of the form
$$
\int_Af(x,y)\,dy\stackrel{def}=I(x,A),
$$
where $f$ is a finite logarithmically concave function in $E^{n+m}$ and $A$ is a convex subset of the space $E^m$. For any pair of convex sets $A$ and $B$ and any $x_1,x_2\in E^n$ we establish the inequality
$$
I(\lambda x_1+(1-\lambda)x_2,\lambda A+(1-\lambda)B)\ge I^\lambda(x_1,A)I^{1-\lambda}(x_2,B)\quad0<\lambda<1.
$$
Received: 15.03.1976
Citation:
V. A. Tomilenko, “Integrals of logarithmically concave functions”, Mat. Zametki, 20:6 (1976), 843–845; Math. Notes, 20:6 (1976), 1030–1031
Linking options:
https://www.mathnet.ru/eng/mzm7913 https://www.mathnet.ru/eng/mzm/v20/i6/p843
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