On Complex Matrix-Variate Dirichlet Averages and Its Applications in Various Sub-Domains

This paper is about Dirichlet averages in the matrix-variate case or averages of functions over the Dirichlet measure in the complex domain. The classical power mean contains the harmonic mean, arithmetic mean and geometric mean (Hardy, Littlewood and Polya), which is generalized to the <i>y&l...

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Main Authors: Princy Thankamani, Nicy Sebastian, Hans J. Haubold
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/25/11/1534
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author Princy Thankamani
Nicy Sebastian
Hans J. Haubold
author_facet Princy Thankamani
Nicy Sebastian
Hans J. Haubold
author_sort Princy Thankamani
collection DOAJ
description This paper is about Dirichlet averages in the matrix-variate case or averages of functions over the Dirichlet measure in the complex domain. The classical power mean contains the harmonic mean, arithmetic mean and geometric mean (Hardy, Littlewood and Polya), which is generalized to the <i>y</i>-mean by de Finetti and hypergeometric mean by Carlson; see the references herein. Carlson’s hypergeometric mean averages a scalar function over a real scalar variable type-1 Dirichlet measure, which is known in the current literature as the Dirichlet average of that function. The idea is examined when there is a type-1 or type-2 Dirichlet density in the complex domain. Averages of several functions are computed in such Dirichlet densities in the complex domain. Dirichlet measures are defined when the matrices are Hermitian positive definite. Some applications are also discussed.
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spelling doaj.art-2fef2c7435bf43098ce48321595831482023-11-24T14:41:03ZengMDPI AGEntropy1099-43002023-11-012511153410.3390/e25111534On Complex Matrix-Variate Dirichlet Averages and Its Applications in Various Sub-DomainsPrincy Thankamani0Nicy Sebastian1Hans J. Haubold2Department of Statistics, Cochin University of Science and Technology, Cochin 682 022, IndiaDepartment of Statistics, St. Thomas College Thrissur, Calicut University, Thenhipalam 680 001, IndiaOffice for Outer Space Affairs, United Nations, Vienna International Center, A-1400 Vienna, AustriaThis paper is about Dirichlet averages in the matrix-variate case or averages of functions over the Dirichlet measure in the complex domain. The classical power mean contains the harmonic mean, arithmetic mean and geometric mean (Hardy, Littlewood and Polya), which is generalized to the <i>y</i>-mean by de Finetti and hypergeometric mean by Carlson; see the references herein. Carlson’s hypergeometric mean averages a scalar function over a real scalar variable type-1 Dirichlet measure, which is known in the current literature as the Dirichlet average of that function. The idea is examined when there is a type-1 or type-2 Dirichlet density in the complex domain. Averages of several functions are computed in such Dirichlet densities in the complex domain. Dirichlet measures are defined when the matrices are Hermitian positive definite. Some applications are also discussed.https://www.mdpi.com/1099-4300/25/11/1534Dirichlet averagegeneralized type-1type-2 Dirichlet measuresfunctions of matrix argumentDirichlet measures in the complex domain
spellingShingle Princy Thankamani
Nicy Sebastian
Hans J. Haubold
On Complex Matrix-Variate Dirichlet Averages and Its Applications in Various Sub-Domains
Entropy
Dirichlet average
generalized type-1
type-2 Dirichlet measures
functions of matrix argument
Dirichlet measures in the complex domain
title On Complex Matrix-Variate Dirichlet Averages and Its Applications in Various Sub-Domains
title_full On Complex Matrix-Variate Dirichlet Averages and Its Applications in Various Sub-Domains
title_fullStr On Complex Matrix-Variate Dirichlet Averages and Its Applications in Various Sub-Domains
title_full_unstemmed On Complex Matrix-Variate Dirichlet Averages and Its Applications in Various Sub-Domains
title_short On Complex Matrix-Variate Dirichlet Averages and Its Applications in Various Sub-Domains
title_sort on complex matrix variate dirichlet averages and its applications in various sub domains
topic Dirichlet average
generalized type-1
type-2 Dirichlet measures
functions of matrix argument
Dirichlet measures in the complex domain
url https://www.mdpi.com/1099-4300/25/11/1534
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AT nicysebastian oncomplexmatrixvariatedirichletaveragesanditsapplicationsinvarioussubdomains
AT hansjhaubold oncomplexmatrixvariatedirichletaveragesanditsapplicationsinvarioussubdomains