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arXiv 0909.4361math.FA
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锥测度与$L_p$质心体的相对熵

Relative entropy of cone measures and $L_p$ centroid bodies

Grigoris Paouris, Elisabeth M. Werner

摘要:

设$K$是$\mathbb R^n$中的凸体。我们引入了一个新的仿射不变量,我们称之为$Ω_K$,可以发现在三种不同的方式:作为一个限制的归一化$L_p$-仿射表面积,作为相对熵的锥测量的$K$和锥测量的$K^\circ$,作为限制的体积差的$K$和$L_p$-质心机构。我们研究了$Ω_K$和相关的新不变量的性质。特别地,我们证明了新的仿射等周不等式和凸体的"信息不等式"。

英文摘要:

Let $K$ be a convex body in $\mathbb R^n$. We introduce a new affine invariant, which we call $Ω_K$, that can be found in three different ways: as a limit of normalized $L_p$-affine surface areas, as the relative entropy of the cone measure of $K$ and the cone measure of $K^\circ$, as the limit of the volume difference of $K$ and $L_p$-centroid bodies. We investigate properties of $Ω_K$ and of related new invariant quantities. In particular, we show new affine isoperimetric inequalities and we show a "information inequality" for convex bodies.

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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