Results 11 to 20 of about 115,454 (246)

On optimal quadrature formulae

open access: yesJournal of Inequalities and Applications, 2000
A procedure to construct quadrature formulae which are exact for solutions of linear differential equations and are optimal in the sense of Sard is discussed. We give necessary and sufficient conditions under which such formulae do exist.
Lanzara Flavia
doaj   +2 more sources

Asymptotic behaviour of fixed-order error constants of modified quadrature formulae for Cauchy principal value integrals

open access: yesJournal of Inequalities and Applications, 2000
We consider quadrature formulae for Cauchy principal value integrals The quadrature formulae considered here are so-called modified formulae, which are obtained by first subtracting the singularity, and then applying some standard quadrature formula ...
Diethelm Kai, Köhler Peter
doaj   +2 more sources

Quadrature Formulae and Polynomial Inequalities [PDF]

open access: yesJournal of Approximation Theory, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Guessab, A, Rahman, Q.I
openaire   +2 more sources

Weighted quadrature formulae of Gauss-Christoffel-Stancu type [PDF]

open access: yesJournal of Numerical Analysis and Approximation Theory, 2003
In the present paper we consider weighted integrals and develop explicit quadrature formulae of Gauss-Christoffel-Stancu type using simple Gaussian nodes and multiple fixed nodes.
Dimitrie D. Stancu   +2 more
doaj   +3 more sources

Symmetric Quadrature Formulae for Simplexes [PDF]

open access: yesMathematics of Computation, 1970
Symmetrie interpolation polynomials are defined for N N -dimensional simplexes with the aid of a symmetric coordinate ...
P. Silvester
openaire   +2 more sources

On Simpson's Inequality and Applications [PDF]

open access: yes, 1999
New inequalities of Simpson type and their application to quadrature formulae in Numerical Analysis are ...
Agarwal, R. P   +2 more
core   +6 more sources

Effective potentials in nonlinear polycrystals and quadrature formulae. [PDF]

open access: yesProc Math Phys Eng Sci, 2017
International audienceThis study presents a family of estimates for effective potentials in nonlinear polycrystals. Noting that these potentials are given as averages, several quadrature formulae are investigated to express these integrals of nonlinear ...
Michel JC, Suquet P.
europepmc   +2 more sources

Asymptotics for Stieltjes polynomials, Padé-type approximants, and Gauss-Kronrod quadrature [PDF]

open access: yes, 2002
23 pages, 1 figure.-- MSC1991 codes: Primary: 41A21, 42C05; Secondary: 30E10.MR#: MR1894475 (2002m:41021)Zbl#: Zbl 1020.41019We study the asymptotic properties of Stieltjes polynomials outside the support of the measure as well as the asymptotic ...
López Lagomasino, Guillermo   +11 more
core   +1 more source

Design of quadrature rules for Müntz and Müntz-logarithmic polynomials using monomial transformation [PDF]

open access: yes, 2009
A method for constructing the exact quadratures for Müntz and Müntz-logarithmic polynomials is presented. The algorithm does permit to anticipate the precision (machine precision) of the numerical integration of Müntz-logarithmic polynomials in terms of ...
Lombardi, Guido
core   +1 more source

New interpolatory quadrature formulae with Gegenbauer abscissae [PDF]

open access: yes, 2003
We study interpolatory quadrature formulae, relative to the Legendre weight function on [-1, 1], having as nodes the zeros of the nth degree Gegenbauer polynomial plus one of the points 1 or -1.
Notaris, S.E.
core   +3 more sources

Home - About - Disclaimer - Privacy