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Inversely Symmetric Interpolatory Quadrature Rules
Let \(d\phi (x)\) a symmetric distribution defined on \([-d,d]\), with \(d>0\). Further, let \(d\psi (t)\) be a strong weight distribution defined on \((\beta^2/b,b)\), where \(0< \beta< b\leq \infty\), and such that \[ d\psi (t)/\sqrt t=-d\psi (\beta ^2/t)/\sqrt {\beta ^2/t}. \] The authors consider the transformation \(x(t)=1/(2\sqrt \alpha)(\sqrt t -
De Andrade, E. X. L. +2 more
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A probabilistic model for quadrature rules
Applied Mathematics and Computation, 2007zbMATH Open Web Interface contents unavailable due to conflicting licenses.
M. Masjed-Jamei, Mehdi Dehghan 0002
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Quadrature rules for rational functions
Numerische Mathematik, 2000Recent ideas on Gauss-type quadrature rules are extended to Gauss-Kronrod, Gauss-Turán and Cauchy principal value quadrature rules. Numerical examples supporting the theory are given.
GAUTSCHI W. +2 more
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On the computation of Patterson-type quadrature rules
Journal of Computational and Applied Mathematics, 2022The Gauss-Kronrod formula is a \((2n+1)\)-point interpolating quadrature formula for \(I[f]=\int_{-1}^1 f(x)d\mu(x)\). It has \(n\) Gauss nodes (zeros of orthogonal polynomial \(p_n\)), and the remaining \(n+1\) nodes are zeros of a the Stieltjes polynomial \(Q_{n+1}\) (orthogonal to \(p_n(x) x^k\), \(k=0,\ldots,n\)) [\textit{D. Calvetti} et al., Math.
Bernardo de la Calle Ysern +1 more
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Quadrature Rules Based on the Arnoldi Process
SIAM Journal on Matrix Analysis and Applications, 2005Applying a few steps of the Arnoldi process to a large nonsymmetric matrix \(A\) with initial vector \(v\) is shown to induce several quadrature rules. Properties of these rules are discussed, and their application to the computation of inexpensive estimates of the quadratic form \(\langle f,g\rangle:=v^\ast(f(A))^\ast g(A)v\) and related quadratic and
Daniela Calvetti +2 more
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Quadrature rules for Prandtl's integral equation
Computing, 1986We construct an interpolatory quadrature formula of the type \[ \int^{1}_{-1}f'(x)/(y-x)dx\approx \sum^{n}_{i=1}w_{ni}(y)f(x_{ni}), \] where \(f(x)=(1- x)^{\alpha}(1+x)^{\beta}f_ 0(x)\), \(\alpha,\beta >0\), and \(\{x_{ni}\}\) are the n zeros of the n-th degree Chebyshev polynomial of the first kind, \(T_ n(x)\).
MONEGATO, Giovanni, Pennacchietti V.
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The set of anti-Gaussian quadrature rules for the optimal set of quadrature rules in Borges’ sense
Journal of Computational and Applied MathematicszbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nevena Z. Petrovic +3 more
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On Functional Equations Connected with Quadrature Rules
gmj, 2009Abstract The functional equations of the form are considered. They are connected with quadrature rules of the approximate integration. We show that such equations characterize polynomials in the class of continuous functions.
Koclȩga-Kulpa, B. +2 more
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Hybrid Gauss-Trapezoidal Quadrature Rules
SIAM Journal on Scientific Computing, 1999The author derives a new class of quadrature rules prescribed for regular and for singular functions as well. The most important property is the fact that the quadrature weights of these rules are positive and the class includes rules of arbitrarily high-order convergence.
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