On the domains of convergence of the branched continued fraction expansion of ratio $H_4(a,d+1;c,d;\mathbf{z})/H_4(a,d+2;c,d+1;\mathbf{z})$

The paper considers the problem of establishing the convergence criteria of the branched continued fraction expansion of the ratio of Horn's hypergeometric functions $H_4$. To solve it, the technique of expanding the domain of convergence of the branched continued fraction from the known small...

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Main Authors: R.I. Dmytryshyn, I.-A.V. Lutsiv, O.S. Bodnar
Format: Article
Language:English
Published: Oles Honchar Dnipro National University 2023-12-01
Series:Researches in Mathematics
Subjects:
Online Access:https://vestnmath.dnu.dp.ua/index.php/rim/article/view/406/406
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author R.I. Dmytryshyn
I.-A.V. Lutsiv
O.S. Bodnar
author_facet R.I. Dmytryshyn
I.-A.V. Lutsiv
O.S. Bodnar
author_sort R.I. Dmytryshyn
collection DOAJ
description The paper considers the problem of establishing the convergence criteria of the branched continued fraction expansion of the ratio of Horn's hypergeometric functions $H_4$. To solve it, the technique of expanding the domain of convergence of the branched continued fraction from the known small domain of convergence to a wider domain of convergence is used. For the real and complex parameters of the Horn hypergeometric function $H_4$, a number of convergence criteria of the branched continued fraction expansion under certain conditions to its coefficients in various unbounded domains of the space have been established.
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spelling doaj.art-bf63289a055941cda7cae26cab2816922023-12-26T17:23:11ZengOles Honchar Dnipro National UniversityResearches in Mathematics2664-49912664-50092023-12-01312192510.15421/242311On the domains of convergence of the branched continued fraction expansion of ratio $H_4(a,d+1;c,d;\mathbf{z})/H_4(a,d+2;c,d+1;\mathbf{z})$R.I. Dmytryshyn0https://orcid.org/0000-0003-2845-0137I.-A.V. Lutsiv1https://orcid.org/0000-0002-4100-2972O.S. Bodnar2https://orcid.org/0000-0003-4207-0624Vasyl Stefanyk Precarpathian National UniversityVasyl Stefanyk Precarpathian National UniversityTernopil Volodymyr Hnatiuk National Pedagogical UniversityThe paper considers the problem of establishing the convergence criteria of the branched continued fraction expansion of the ratio of Horn's hypergeometric functions $H_4$. To solve it, the technique of expanding the domain of convergence of the branched continued fraction from the known small domain of convergence to a wider domain of convergence is used. For the real and complex parameters of the Horn hypergeometric function $H_4$, a number of convergence criteria of the branched continued fraction expansion under certain conditions to its coefficients in various unbounded domains of the space have been established.https://vestnmath.dnu.dp.ua/index.php/rim/article/view/406/406horn hypergeometric functionbranched continued fractionholomorphic function of several complex variablesconvergence
spellingShingle R.I. Dmytryshyn
I.-A.V. Lutsiv
O.S. Bodnar
On the domains of convergence of the branched continued fraction expansion of ratio $H_4(a,d+1;c,d;\mathbf{z})/H_4(a,d+2;c,d+1;\mathbf{z})$
Researches in Mathematics
horn hypergeometric function
branched continued fraction
holomorphic function of several complex variables
convergence
title On the domains of convergence of the branched continued fraction expansion of ratio $H_4(a,d+1;c,d;\mathbf{z})/H_4(a,d+2;c,d+1;\mathbf{z})$
title_full On the domains of convergence of the branched continued fraction expansion of ratio $H_4(a,d+1;c,d;\mathbf{z})/H_4(a,d+2;c,d+1;\mathbf{z})$
title_fullStr On the domains of convergence of the branched continued fraction expansion of ratio $H_4(a,d+1;c,d;\mathbf{z})/H_4(a,d+2;c,d+1;\mathbf{z})$
title_full_unstemmed On the domains of convergence of the branched continued fraction expansion of ratio $H_4(a,d+1;c,d;\mathbf{z})/H_4(a,d+2;c,d+1;\mathbf{z})$
title_short On the domains of convergence of the branched continued fraction expansion of ratio $H_4(a,d+1;c,d;\mathbf{z})/H_4(a,d+2;c,d+1;\mathbf{z})$
title_sort on the domains of convergence of the branched continued fraction expansion of ratio h 4 a d 1 c d mathbf z h 4 a d 2 c d 1 mathbf z
topic horn hypergeometric function
branched continued fraction
holomorphic function of several complex variables
convergence
url https://vestnmath.dnu.dp.ua/index.php/rim/article/view/406/406
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