Results 11 to 20 of about 2,496,823 (351)

Three- and four-term recurrence relations for Horn's hypergeometric function $H_4$

open access: yesResearch in Mathematics, 2022
Three- and four-term recurrence relations for hypergeometric functions of the second order (such as hypergeometric functions of Appell, Horn, etc.) are the starting point for constructing branched continued fraction expansions of the ratios of these ...
R. Dmytryshyn, I.-A.V. Lutsiv
semanticscholar   +1 more source

Dynaplex: analyzing program complexity using dynamically inferred recurrence relations

open access: yesProc. ACM Program. Lang., 2021
Being able to detect program runtime complexity is useful in many tasks (e.g., checking expected performance and identifying potential security vulnerabilities).
Didier Ishimwe   +2 more
semanticscholar   +1 more source

On Determinantal recurrence relations of banded matrices

open access: yesKuwait Journal of Science, 2021
We provide an algorithm based on a less-known result about recurrence relations for the determinants of banded matrices. As a consequence, we prove recent conjectures on the determinants of particular classes of pentadiagonal matrices and simple ...
Zhibin Du   +2 more
doaj   +1 more source

RECURRENCE RELATIONS FOR SOBOLEV ORTHOGONAL POLYNOMIALS

open access: yesПроблемы анализа, 2020
We consider recurrence relations for the polynomials orthonormal with respect to the Sobolev-type inner product and generated by classical orthogonal polynomials, namely: Jacobi polynomials, Legendre polynomials, Chebyshev polynomials of the first and ...
M. S. Sultanakhmedov
doaj   +1 more source

On some hypergeometric Sobolev orthogonal polynomials with several continuous parameters

open access: yesVisnik Harkivsʹkogo Nacionalʹnogo Universitetu im. V.N. Karazina. Cepiâ Matematika, Prikladna Matematika i Mehanika, 2023
In this paper we study the following hypergeometric polynomials: $$ \mathcal{P}_n(x) = \mathcal{P}_n(x;\alpha,\beta,\delta_1, \dots,\delta_\rho,\kappa_1,\dots,\kappa_\rho) = $$ $$ = {}_{\rho+2} F_{\rho+1} (-n,n+\alpha+\beta+1,\delta_1+1, \dots,\delta_ ...
Sergey Zagorodnyuk
doaj   +1 more source

Numerically Stable Recurrence Relations for the Communication Hiding Pipelined Conjugate Gradient Method [PDF]

open access: yesIEEE Transactions on Parallel and Distributed Systems, 2019
Pipelined Krylov subspace methods (also referred to as communication-hiding methods) have been proposed in the literature as a scalable alternative to classic Krylov subspace algorithms for iteratively computing the solution to a large linear system in ...
Siegfried Cools   +2 more
semanticscholar   +1 more source

A converse of Sturm's separation theorem

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
We show that Sturm's classical separation theorem on the interlacing of the zeros of linearly independent solutions of real second order two-term ordinary differential equations necessarily fails in the presence of a turning point in the principal part ...
Leila Gholizadeh, Angelo Mingarelli
doaj   +1 more source

A Study of the Second-Kind Multivariate Pseudo-Chebyshev Functions of Fractional Degree

open access: yesMathematics, 2020
Here, in this paper, the second-kind multivariate pseudo-Chebyshev functions of fractional degree are introduced by using the Dunford–Taylor integral.
Paolo Emilio Ricci, Rekha Srivastava
doaj   +1 more source

Three- and four-electron integrals involving Gaussian geminals: Fundamental integrals, upper bounds, and recurrence relations. [PDF]

open access: yesJournal of Chemical Physics, 2017
We report the three main ingredients to calculate three- and four-electron integrals over Gaussian basis functions involving Gaussian geminal operators: fundamental integrals, upper bounds, and recurrence relations.
G. Barca, Pierre‐François Loos
semanticscholar   +1 more source

Approximation for the Ratios of the Confluent Hypergeometric Function ΦD(N) by the Branched Continued Fractions

open access: yesAxioms, 2022
The paper deals with the problem of expansion of the ratios of the confluent hypergeometric function of N variables ΦD(N)(a,b¯;c;z¯) into the branched continued fractions (BCF) of the general form with N branches of branching and investigates the ...
Tamara Antonova   +2 more
doaj   +1 more source

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