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Recolector de Ciencia Abierta, RECOLECTA
Conference object . 2009
License: CC BY NC ND
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Recolector de Ciencia Abierta, RECOLECTA
Conference object . 2009
License: CC BY NC ND
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Numerical integration by using local-node gauss-hermite cubature

Authors: Millán, Raúl Daniel; Rosolen, Adrián Martín; Arroyo Balaguer, Marino;

Numerical integration by using local-node gauss-hermite cubature

Abstract

A local–node numerical integration scheme for meshless methods is presented in this work. The distinguishing characteristic of the introduced scheme is that not support mesh or grid to perform numerical integration is needed, besides the fact that gauss cubature points for each node are generated in a properly fashion and that the extension of the methodology to high dimensions is straightforward. The numerical integration is computed with the Gauss–Hermite cubature formulas, and the partition of unity is employed to introduce the Gaussian weight in a natural way. Selected numerical tests in two-dimensions are used to illustrate the validity of the proposed methodology. Although the obtained results are encouraging, the behavior of the integration error is not still well understood when the dimensionless parameter which control the width of the Gaussian kernel varies.

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Spain
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Keywords

Classificació AMS::65 Numerical analysis::65D Numerical approximation and computational geometry, Àrees temàtiques de la UPC::Matemàtiques i estadística::Equacions diferencials i integrals::Equacions en derivades parcials, Meshfree methods, Gauss–Hermite cubature, Aproximació, Teoria de l', :Matemàtiques i estadística::Equacions diferencials i integrals::Equacions en derivades parcials [Àrees temàtiques de la UPC], Numerical integration, :65 Numerical analysis::65D Numerical approximation and computational geometry [Classificació AMS], Geometry

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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