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Hypergeometric Functions: From One Scalar Variable to Several Matrix Arguments, in Statistics and Beyond

open access: goldOpen Journal of Statistics, 2016
Hypergeometric functions have been increasingly present in several disciplines including Statistics, but there is much confusion on their proper uses, as well as on their existence and domain of definition. In this article, we try to clarify several points and give a general overview of the topic, going from the univariate case to the matrix case, in ...
T. Pham-Gia, Dinh Ngoc Thanh
openaire   +4 more sources

Fractional operators in the matrix variate case [PDF]

open access: yesFractional Calculus and Applied Analysis, 2013
Fractional integral operators connected with real-valued scalar functions of matrix argument are applied in various problems of mathematics, statistics and natural sciences.
A. M. Mathai, H. Haubold
semanticscholar   +2 more sources

Multidimensional Matrix Inversions and Elliptic Hypergeometric Series on Root Systems [PDF]

open access: yes, 2020
Multidimensional matrix inversions provide a powerful tool for studying multiple hypergeometric series. In order to extend this technique to elliptic hypergeometric series, we present three new multidimensional matrix inversions.
Rosengren, Hjalmar   +1 more
core   +2 more sources

The affinely invariant distance correlation [PDF]

open access: yes, 2014
Sz\'{e}kely, Rizzo and Bakirov (Ann. Statist. 35 (2007) 2769-2794) and Sz\'{e}kely and Rizzo (Ann. Appl. Statist. 3 (2009) 1236-1265), in two seminal papers, introduced the powerful concept of distance correlation as a measure of dependence between sets ...
Dueck, Johannes   +3 more
core   +1 more source

Integrals of Four Variables with Statistical Distribution associated with hyper geometric Function of Matrix Argument

open access: yesInternational Journal for Research in Applied Science and Engineering Technology, 2019
: In this chapter, we evaluated ten integrals associated with hypergeometric function of four variables of matrix argument with their statistical distribution. All the matrix involved were real positive definite symmetric of order m x m.
Pooja Singh
semanticscholar   +1 more source

Gauss Hypergeometric Representations of the Ferrers Function of the Second Kind [PDF]

open access: yesSIGMA 17 (2021), 053, 33 pages, 2020
We derive all eighteen Gauss hypergeometric representations for the Ferrers function of the second kind, each with a different argument. They are obtained from the eighteen hypergeometric representations of the associated Legendre function of the second kind by using a limit representation.
arxiv   +1 more source

A new multivariable 6-psi-6 summation formula [PDF]

open access: yes, 2006
By multidimensional matrix inversion, combined with an A_r extension of Jackson's 8-phi-7 summation formula by Milne, a new multivariable 8-phi-7 summation is derived.
C. Krattenthaler   +31 more
core   +1 more source

On a matrix element representation of the GKZ hypergeometric functions [PDF]

open access: yes, 2022
We develop a representation theory approach to the study of generalized hypergeometric functions of Gelfand, Kapranov and Zelevisnky (GKZ). We show that the GKZ hypergeometric functions may be identified with matrix elements of non-reductive Lie algebras $\mathfrak{L}_N$ of oscillator type.
arxiv   +1 more source

A study on Horn matrix functions and its confluent cases [PDF]

open access: yesarXiv, 2022
In this paper, we give the matrix version of Horn's hypergeometric function and its confluent cases. We also discuss the regions of convergence, the system of matrix differential equations of bilateral type, differential formulae and infinite summation formulae satisfied by these hypergeometric matrix functions.
arxiv  

Euler-type integrals for the generalized hypergeometric matrix function [PDF]

open access: yesarXiv, 2023
In this paper, we investigate the Euler-type integral representations for the generalized hypergeometric matrix function and develop some transformations in terms of hypergeometric matrix functions. Furthermore, unit and half arguments have been provided for several particular cases.
arxiv  

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