English

Probability distributions with rational free $R$-transform

Probability 2021-11-22 v1 Combinatorics

Abstract

We study the class Mratio\mathcal{M}_{\mathrm{ratio}} of those probability distributions for which the free RR-transforms are rational functions. This class is closed under the additive free convolution, additive free powers and under the monotone convolution. We prove a sufficient condition that a rational function is the free RR-transform of a probability distribution. Several examples are provided, including that of free deconvolution.

Keywords

Cite

@article{arxiv.2111.10150,
  title  = {Probability distributions with rational free $R$-transform},
  author = {Wojciech Młotkowski},
  journal= {arXiv preprint arXiv:2111.10150},
  year   = {2021}
}
R2 v1 2026-06-24T07:44:43.055Z