Rational Gauss quadrature

MS Pranic, L Reichel - SIAM Journal on Numerical Analysis, 2014 - SIAM
… Many rational functions that are orthogonal with respect to the … for these orthonormal
rational functions can be used to … for this kind of quadrature rules to rational Gauss rules with …

The structure of matrices in rational Gauss quadrature

C Jagels, L Reichel - Mathematics of computation, 2013 - ams.org
… We also derive remainder terms for the rational Gauss and Gauss-Radau quadrature rules …
of rational Gauss quadrature rules with the aim to determine an expression for the quadrature

The existence and construction of rational Gauss-type quadrature rules

K Deckers, A Bultheel - Applied mathematics and computation, 2012 - Elsevier
rational interpolatory quadrature formulas with certain kinds of quasi-orthogonal rational
study the existence and construction of rational Gauss-type quadrature formulas for a given (…

Matrices, moments, and rational quadrature

GL Lagomasino, L Reichel, L Wunderlich - Linear algebra and its …, 2008 - Elsevier
… to allow the use of rational Gauss quadrature rules. © … Gauss quadrature rules that is exact
for certain rational functions with preselected poles. These rules are known as rational Gauss

Algorithm 793: GQRAT—Gauss quadrature for rational functions

W Gautschi - ACM Transactions on Mathematical Software (TOMS), 1999 - dl.acm.org
… INTRODUCTION Traditionally, Gaussian quadrature rules are … require exactness for
elementary rational functions having the … Gauss quadrature rules of this rational type have recently …

On computing rational Gauss-Chebyshev quadrature formulas

J Van Deun, A Bultheel, P González Vera - Mathematics of Computation, 2006 - ams.org
… a class of gaussian quadrature formulas on [−1, 1], based on orthogonal rational functions,
which … They are rational generalizations of the Gauss-Chebyshev formula, and are exact in a …

Quadrature formulas based on rational interpolation

W Van Assche, I Vanherwegen - mathematics of computation, 1993 - ams.org
… This gives a quadrature with maximum accuracy, and we refer to it as Gaussian quadrature.
It is well known that both approaches are the same when one is using interpolation by polyno…

Machine precision evaluation of singular and nearly singular potential integrals by use of Gauss quadrature formulas for rational functions

RD Graglia, G Lombardi - IEEE transactions on antennas and …, 2008 - ieeexplore.ieee.org
… Our quadrature scheme is based on a new rational representation of the integrands … butions
using library routines for Gauss quadrature of rational functions that are readily available in …

Rational averaged gauss quadrature rules

L Reichel, MM Spalević, JD Tomanović - Filomat, 2020 - doiserbia.nb.rs
… results on rational Gauss-type quadrature rules. In Section 3, we introduce rational averaged
Gauss quadrature formulas and rational generalized averaged Gauss quadrature formulas. …

Rational Gauss quadrature rules for the approximation of matrix functionals involving Stieltjes functions

J Alahmadi, M Pranić, L Reichel - Numerische Mathematik, 2022 - Springer
… We also define rational anti-Gauss quadrature rules and simplified rational anti-Gauss rules.
… We will use the rational Gauss quadrature rules described in [25] and define associated …