Several Functions Originating from Fisher–Rao Geometry of Dirichlet Distributions and Involving Polygamma Functions

Author:

Qi Feng123ORCID,Agarwal Ravi Prakash4ORCID

Affiliation:

1. School of Mathematics and Informatics, Henan Polytechnic University, Jiaozuo 454010, China

2. School of Mathematics and Physics, Hulunbuir University, Hulunbuir 021008, China

3. Independent Researcher, Dallas, TX 75252-8024, USA

4. Department of Mathematics, Texas A&M University-Kingsville, Kingsville, TX 78363-8202, USA

Abstract

In this paper, the authors review and survey some results published since 2020 about (complete) monotonicity, inequalities, and their necessary and sufficient conditions for several newly introduced functions involving polygamma functions and originating from the estimation of the sectional curvature of the Fisher–Rao geometry of the Dirichlet distributions in the two-dimensional case.

Publisher

MDPI AG

Subject

General Mathematics,Engineering (miscellaneous),Computer Science (miscellaneous)

Reference59 articles.

1. Brigant, A.L., and Puechmorel, S. (2019). The Fisher-Rao geometry of beta distributions applied to the study of canonical moments. arXiv.

2. Brigant, A.L., Preston, S., and Puechmorel, S. (2020). Fisher–Rao geometry of Dirichlet distributions. arXiv.

3. Fisher–Rao geometry of Dirichlet distributions;Brigant;Differ. Geom. Appl.,2021

4. Agarwal, R.P., Karapinar, E., Kostić, M., Cao, J., and Du, W.-S. (2022). A brief overview and survey of the scientific work by Feng Qi. Axioms, 11.

5. Arvanitidis, G., González-Duque, M., Pouplin, A., Kalatzis, D., and Hauberg, S. (2022). Pulling back information geometry. arXiv.

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