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arXiv 0903.0433math-phmath.MPmath.PR
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具有硬核势的Gibbs场的一个反问题

An Inverse Problem for Gibbs Fields with Hard Core Potential

L. Koralov

摘要:

众所周知,对于一个规则稳定的对相互作用势和一个小的活度值,人们可以定义相应的吉布斯场($\mathbb{R}^d$中点的位形空间上的一个测度)。本文考虑一个逆问题。也就是说,我们表明,对于一个足够小的常数$\overlineρ_1$和一个足够小的功能$\overlineρ_2(x)$,$x \in \mathbb{R}^d$,这是等于零的原点附近,存在一个硬核对电位,和一个值的活动,使$\overlineρ_1$的密度和$\overlineρ_2$是对关联函数的相应的吉布斯场。

英文摘要:

It is well known that for a regular stable potential of pair interaction and a small value of activity one can define the corresponding Gibbs field (a measure on the space of configurations of points in $\mathbb{R}^d$). In this paper we consider a converse problem. Namely, we show that for a sufficiently small constant $\overlineρ_1$ and a sufficiently small function $\overlineρ_2(x)$, $x \in \mathbb{R}^d$, that is equal to zero in a neighborhood of the origin, there exist a hard core pair potential, and a value of activity, such that $\overlineρ_1$ is the density and $\overlineρ_2$ is the pair correlation function of the corresponding Gibbs field.

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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