English

Reconstructions of piece-wise continuous and discrete functions using moments

Statistics Theory 2023-12-08 v1 Classical Analysis and ODEs Statistics Theory

Abstract

The problem of recovering a moment-determinate multivariate function ff via its moment sequence is studied. Under mild conditions on ff, the point-wise and L1L_1-rates of convergence for the proposed constructions are established. The cases where ff is the indicator function of a set, and represents a discrete probability mass function are also investigated. Calculations of the approximants and simulation studies are conducted to graphically illustrate the behavior of the approximations in several simple examples. Analytical and simulated errors of proposed approximations are recorded in Tables 1-3.

Keywords

Cite

@article{arxiv.2312.04462,
  title  = {Reconstructions of piece-wise continuous and discrete functions using moments},
  author = {Robert Mnatsakanov and Rafik Aramyan and Farhad Jafari},
  journal= {arXiv preprint arXiv:2312.04462},
  year   = {2023}
}
R2 v1 2026-06-28T13:44:12.732Z