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arXiv 0907.2861math.FAmath.PR
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欧几里德卷积不等式的几何与熵

The geometry of Euclidean convolution inequalities and entropy

Dario Cordero-Erausquin, Michel Ledoux

摘要:

本文的目的是证明调和分析和信息论中的一些卷积型不等式,如Young卷积不等式(含sharp常数),Hermite半群的Nelson超压缩性或Shannon不等式,可以归结为$\R^2$框架的简单几何研究.我们将直接导出熵不等式,这些不等式最近被证明是Brascamp-Lieb卷积型不等式的对偶。

英文摘要:

The goal of this note is to show that some convolution type inequalities from Harmonic Analysis and Information Theory, such as Young's convolution inequality (with sharp constant), Nelson's hypercontractivity of the Hermite semi-group or Shannon's inequality, can be reduced to a simple geometric study of frames of $\R^2$. We shall derive directly entropic inequalities, which were recently proved to be dual to the Brascamp-Lieb convolution type inequalities.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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