Results 41 to 50 of about 89 (65)

Opuscula Mathematica

, 2008
In this paper a construction of a one-parameter family of quadrature formulas is presented. This family contains the classical quadrature formulas: trapezoidal rule, mid-point rule and two-point Gauss rule.
Solak, Wiesław, Bożek, Bogusław, Szydełko, Zbigniew   +2 more
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Accurate computation of the high dimensional diffraction potential over hyper-rectangles

, 2018
We propose a fast method for high order approximation of potentials of the Helm-holtz type operator (Delta+kappa^2) over hyper-rectangles in (R^n). By using the basis functions introduced in the theory of approximate approximations, the cubature of a ...
Gunther Schmidt, Vladimir Maz'ya, Flavia Lanzara   +2 more
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Formules de quadrature basées sur des quasi-interpolants splines et applications aux équations intégrales

, 2011
Ce travail est consacré à l'étude et à l'application de formules de quadrature basées sur des quasi-interpolants splines discrets. En effet, nous avons étudié, analysé et construit de nouvelles formules de quadrature basées sur ces opérateurs.
SABLONNIERE, Paul, TAHRICHI, Mohamed, SBIBIH, Driss   +2 more
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Approximation of multivariate functions under certain generalized convexity assumptions

, 2017
Dans de nombreuses applications, nous souhaitons interpoler ou approcher une fonction de plusieurs variables possédant certaines propriétés ou “formes” géométriques, telles que la régularité, la monotonie, la convexité ou la non-négativité.
Mohammed, Osama
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Adaptive cubature over spherical polygons

openNell'elaborato viene proposto un codice numerico di cubatura adattiva su poligoni sferici. Tale algoritmo si basa su formule di cubatura su triangoli sferici con pesi positivi, recentemente introdotte in letteratura.
MIETTO, NICOLE
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Product Gauss quadrature rules vs. cubature rules in the meshless local Petrov–Galerkin method [PDF]

Journal of Complexity, 2010
A crucial point in the implementation of meshless methods such as the meshless local Petrov-Galerkin (MLPG) method is the evaluation of the domain integrals arising over circles in the discrete local weak form of the governing partial differential ...
Annamaria Mazzia
exaly   +2 more sources

Exactness of Quadrature Formulas

SIAM Review, 2022
Lloyd Trefethen
exaly  

Search for the Best Cubature Formulas on the Sphere Invariant under the Icosahedral Rotation Group

Numerical Analysis and Applications, 2023
A S Popov
exaly  

Optimal quadrature and cubature formulas for computing Fourier transform of finite functions of one class. Case of strong oscillation

Cybernetics and Systems Analysis, 2007
V K Zadiraka
exaly  

A survey of known and new cubature formulas for the unit disk

Korean Journal of Computational and Applied Mathematics, 2000
Ronald Cools
exaly