English

The full moment problem on subsets of probabilities and point configurations

Functional Analysis 2021-08-16 v2 Probability

Abstract

The aim of this paper is to study the full KK-moment problem for measures supported on some particular non-linear subsets KK of an infinite dimensional vector space. We focus on the case of random measures, that is KK is a subset of all non-negative Radon measures on Rd\mathbb{R}^d. We consider as KK the space of sub-probabilities, probabilities and point configurations on Rd\mathbb{R}^d. For each of these spaces we provide at least one representation as a generalized basic closed semi-algebraic set to apply the main result in [J. Funct. Anal., 267 (2014) no.5: 1382--1418]. We demonstrate that this main result can be significantly improved by further considerations based on the particular chosen representation of KK. In the case when KK is a space of point configurations, the correlation functions (also known as factorial moment functions) are easier to handle than the ordinary moment functions. Hence, we additionally express the main results in terms of correlation functions.

Keywords

Cite

@article{arxiv.1802.03582,
  title  = {The full moment problem on subsets of probabilities and point configurations},
  author = {Maria Infusino and Tobias Kuna},
  journal= {arXiv preprint arXiv:1802.03582},
  year   = {2021}
}

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24 pages