Results 1 to 10 of about 1,836 (162)

Generalized Ostrowski inequalities and computational integration

open access: yesJournal of Numerical Analysis and Approximation Theory, 2020
We state and prove three generalized results related to Ostrowski inequality by using differentiable functions which are bounded, bounded below only and bounded above only, respectively.
Nazia Irshad   +2 more
doaj   +7 more sources

Anti-Szego quadrature rules [PDF]

open access: yesMathematics of Computation, 2006
The authors purpose a new class of discretization methods for approximating integrals on an interval of \(2\pi\)-length. The integrand contains a periodic function and the derivative of a measure function. The purposed discretization methods are called anti-Szegő quadrature rules.
Sun-Mi Kim, Lothar Reichel
openaire   +2 more sources

Rational averaged gauss quadrature rules [PDF]

open access: yesFilomat, 2020
It is important to be able to estimate the quadrature error in Gauss rules. Several approaches have been developed, including the evaluation of associated Gauss-Kronrod rules (if they exist), or the associated averaged Gauss and generalized averaged Gauss rules.
Lothar Reichel   +2 more
openaire   +2 more sources

On Appel-Type Quadrature Rules [PDF]

open access: yesgmj, 2002
Abstract The Radon technique is applied in order to recover a quadrature rule based on Appel polynomials and the so called Appel numbers. The relevant formula generalizes both the Euler-MacLaurin quadrature rule and a similar rule using Euler (instead of Bernoulli) numbers and even (instead of odd) derivatives of the given function at ...
BELINGERI, Carlo, GERMANO, Bruna
openaire   +3 more sources

A Class of Quadrature Rules for Complex Cauchy Principal Value Integrals [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2023
This article is fully devoted to the numerical approximation of Cauchy-type integrals in the complex plane. A class of degree eight quadrature rules is formulated from a family of Gauss-type two-point rules based on the method of extrapolation. The basic
Arup Kumar Saha   +2 more
doaj   +1 more source

Quadrature Rules for the Fm-Transform Polynomial Components

open access: yesAxioms, 2022
The purpose of this paper is to reduce the complexity of computing the components of the integral Fm-transform, m≥0, whose analytic expressions include definite integrals.
Irina Perfilieva, Tam Pham, Petr Ferbas
doaj   +1 more source

An application of Hayashi's inequality in numerical integration

open access: yesOpen Mathematics, 2023
This study systematically develops error estimates tailored to a specific set of general quadrature rules that exclusively incorporate first derivatives.
Heilat Ahmed Salem   +4 more
doaj   +1 more source

On the Remainder in Quadrature Rules [PDF]

open access: yesMathematics of Computation, 1971
An expression is obtained for the remainder in quadrature rules applied to functions whose Hubert transforms exist. The estimation of the remainder is illustrated by means of a particular example.
openaire   +2 more sources

On some quadrature rules with Gregory end corrections [PDF]

open access: yesOpuscula Mathematica, 2009
How can one compute the sum of an infinite series \(s := a_1 + a_2 + \ldots\)? If the series converges fast, i.e., if the term \(a_n\) tends to \(0\) fast, then we can use the known bounds on this convergence to estimate the desired sum by a finite sum \(
Bogusław Bożek   +2 more
doaj   +1 more source

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