Results 31 to 40 of about 147,754 (277)

On approximation of some Lauricella-Saran's hypergeometric functions $F_M$ and their ratios by branched continued fractions

open access: diamondМатематичні Студії
The paper considers the problem of approximating Lauricella-Saran's hypergeometric functions $F_M(a_1,a_2,b_1,b_2;a_1,c_2;z_1,z_2,z_3)$ by rational functions, which are approximants of branched continued fraction expansions - a special family functions ...
R. Dmytryshyn, I. Nyzhnyk
doaj   +3 more sources

Convergence criterion for branched contіnued fractions of the special form with positive elements

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2017
In this paper the problem of convergence of the important type of a multidimensional generalization of continued fractions, the branched continued fractions with independent variables, is considered.
D.I. Bodnar, I.B. Bilanyk
doaj   +2 more sources

Truncation error bounds of branched continued fraction expansions of special ratios of Horn's hypergeometric functions \(H_4\)

open access: diamondAltay Conference Proceedings in Mathematics
The paper considers the branched continued fraction extensions of special ratios of Horn's hypergeometric functions \(H_4\) with real parameters and variables.
Roman Dmytryshyn   +2 more
openalex   +3 more sources

Multiple orthogonal polynomials, 𝑑-orthogonal polynomials, production matrices, and branched continued fractions

open access: goldTransactions of the American Mathematical Society, Series B
I analyze an unexpected connection between multiple orthogonal polynomials, d d -orthogonal polynomials, production matrices and branched continued fractions. This work can be viewed as a partial extension of Viennot’s combinatorial theory of orthogonal polynomials to the case where the production matrix is lower-Hessenberg but is not ...
Alan D. Sokal
openalex   +4 more sources

Computational Aspects of Approximating the Horn Hypergeometric Functions \(H_3\) by Branched Continued Fractions

open access: diamondAltay Conference Proceedings in Mathematics
This paper investigates the approximation of Horn hypergeometric function \(H_3\) using branched continued fractions (BCFs).Based on the formal branched continued fraction expansion for the ratio of hypergeometric functions \(H_3\), a branched continued ...
Marta Dmytryshyn   +3 more
openalex   +3 more sources

Approximation of functions of several variables by multidimensional $S$-fractions with independent variables

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
The paper deals with the problem of approximation of functions of several variables by branched continued fractions. We study the correspondence between formal multiple power series and the so-called "multidimensional $S$-fraction with independent ...
R.I. Dmytryshyn, S.V. Sharyn
doaj   +1 more source

On convergence of function F4(1,2;2,2;z1,z2) expansion into a branched continued fraction

open access: yesMathematical Modeling and Computing, 2022
In the paper, the possibility of the Appell hypergeometric function F4(1,2;2,2;z1,z2) approximation by a branched continued fraction of a special form is analysed.
V. Hladun   +3 more
semanticscholar   +1 more source

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