Výsledky vyhľadávania - "QD algorithm"

On the calculation of the poles of multivariate meromorphic functions using the symbolic-numeric two-point qd-algorithm Autor Elidrissi, A., Abouir, J., Benouahmane, B.

“…The so-called quotient-difference algorithm, or qd-algorithm, is used for determining the poles of a meromorphic function from its Taylor coefficients…”
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A multidimensional generalization of the Rutishauser $qd$-algorithm Autor Dmytryshyn, R.I.

“… of the Rutishauser $qd$-algorithm…”
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Generalized qd algorithm for block band matrices Autor Draux, André, Sadik, Mohamed

“…The generalized qd algorithm for block band matrices is an extension of the block qd algorithm applied to a block tridiagonal matrix…”
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Differential qd Algorithm with Shifts for Rank-Structured Matrices Autor Zhlobich, Pavel

“… where the differential qd algorithm with shifts (dqds) proposed by Fernando and Parlett enjoys often faster convergence while preserving high relative accuracy…”
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Two-Dimensional Generalization of the Rutishauser qd -Algorithm Autor Dmytryshyn, R. I.

“…A two-dimensional generalization of the Rutishauser qd -algorithm is proposed. The conditions of existence of this algorithm are established…”
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Generalized qd algorithm and Markov–Bernstein inequalities for Jacobi weight Autor Draux, André, Moalla, Borhane, Sadik, Mohamed

“… positive definite symmetric matrix. The aim of this paper is to generalize the qd algorithm for positive definite symmetric band matrices and to give the mean to expand the determinant of a five diagonal symmetric matrix…”
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Accurate quotient-difference algorithm: Error analysis, improvements and applications Autor Du, Peibing, Barrio, Roberto, Jiang, Hao, Cheng, Lizhi

“… The main motivation is based on the fact that the standard quotient-difference (qd) algorithm can be numerically unstable…”
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Detecting discontinuity points from spectral data with the quotient-difference (qd) algorithm Autor Allouche, Hassane, Ghanou, Noura, Tigma, Khalid

“… Our approach consists in moving from a discontinuity point detection problem to a pole detection problem, then adapting the quotient-difference (qd…”
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Reliable root detection with the qd-algorithm: When Bernoulli, Hadamard and Rutishauser cooperate Autor Allouche, Hassane, Cuyt, Annie

“…When using Rutishauser's qd-algorithm for the determination of the roots of a polynomial…”
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Numerical solution of singular regular boundary value problems by pole detection with qd-algorithm Autor Allouche, H., Marhraoui, N.

“…In this paper, we present a method using qd-algorithm combined with finite difference method for numerically solving singular boundary value problems for certain ordinary differential equation having…”
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Reliable root detection with the qd-algorithm: When Bernoulli, Hadamard and Rutishauser cooperate: Approximation and Extrapolation of convergent and divergent sequences and series (CIRM, Luminy - France, 2009) Autor ALLOUCHE, Hassane, CUYT, Annie

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The Orthogonal qd-Algorithm Autor von Matt, Urs

“…The orthogonal qd-algorithm is presented to compute the singular value decomposition of a bidiagonal matrix…”
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Quasi-symmetric orthogonal polynomials on the real line: moments, quadrature rules and invariance under Christoffel modifications Autor Veronese, Daniel O., Silva, Jairo S., Pereira, Junior A.

“… We also show that the QD-algorithm can be applied in order to generate new orthogonal polynomials in a simple way…”
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Stieltjes continued fraction and QD algorithm: scalar, vector, and matrix cases Autor Van Iseghem, Jeannette

“… The subject was more undefined in the matrix case. A new version of the QD algorithm for matrix problem, allows to extend to the vector and matrix cases the result of Stieltjes, expansion of a (scalar…”
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Vector Stieltjes Continued Fraction and Vector QD Algorithm Autor Van Iseghem, Jeannette

“… A new version of the vector QD algorithm allows to extend to the vector case the result which was known for one scalar function…”
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Multivariate homogeneous two-point Padé approximants and continued fractions Autor Chakir, Y., Abouir, J., Benouahmane, B.

“…The multivariate homogeneous two-point Padé approximants have been defined and studied recently. In the current work, we consider higher-order approximants and…”
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Bi-Hamiltonian structure of the qd algorithm and new discretizations of the Toda lattice Autor Suris, Yuri B.

“…We introduce two new discretizations of the Toda lattice related to the qd algorithm…”
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A shift for accurate singular values¶in the differential qd algorithm Autor Di Lena, G., Peluso, R.I., Piazza, G.

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The Vector QD Algorithm for Smooth Functions (f, f′) Autor Le Ferrand, Hervé

“…We deal with the functionz↦(f(z), f′(z)) wheref(z)=∑i⩾0aizi, (ai∈C) with limi→∞ai+1×ai−1/(ai)2=q. We investigate the convergence of the vector QD algorithm…”
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Implementation of the Orthogonal QD Algorithm for Lower Tridiagonal Matrices Autor Araki, Sho, Tanaka, Hiroki, Kimura, Kinji, Nakamura, Yoshimasa

“…The orthogonal qd algorithm with shifts (oqds algorithm), proposed by von Matt, is an algorithm for computing the singular values of bidiagonal matrices…”
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