Mathematics – Functional Analysis
Scientific paper
2011-11-29
Mathematics
Functional Analysis
13 pages
Scientific paper
As was shown recently by the authors, the entropy power inequality can be reversed for independent summands with sufficiently concave densities, when the distributions of the summands are put in a special position. In this note it is proved that reversibility is impossible over the whole class of convex probability distributions. Related phenomena for identically distributed summands are also discussed.
Bobkov Sergey G.
Madiman Mokshay M.
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