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Volume 41, Issue 3
Theoretical Analysis of the Reproducing Kernel Gradient Smoothing Integration Technique in Galerkin Meshless Methods

Xiaolin Li

DOI: 10.4208/jcm.2201-m2021-0361

J. Comp. Math., 41 (2023), pp. 501-524.

Published online: 2023-02

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  • Abstract

Numerical integration poses greater challenges in Galerkin meshless methods than finite element methods owing to the non-polynomial feature of meshless shape functions. The reproducing kernel gradient smoothing integration (RKGSI) is one of the optimal numerical integration techniques in Galerkin meshless methods with minimum integration points. In this paper, properties, quadrature rules and the effect of the RKGSI on meshless methods are analyzed. The existence, uniqueness and error estimates of the solution of Galerkin meshless methods under numerical integration with the RKGSI are established. A procedure on how to choose quadrature rules to recover the optimal convergence rate is presented.

  • Keywords

Galerkin meshless method, Numerical integration, Quadrature rule, Error estimates, Element-free Galerkin method, Degree of precision.

  • AMS Subject Headings

65D32, 65N15, 65N30

  • Copyright

COPYRIGHT: © Global Science Press

  • Email address

lxlmath@163.com (Xiaolin Li)

  • BibTex
  • RIS
  • TXT
@Article{JCM-41-501, author = {Li , Xiaolin}, title = {Theoretical Analysis of the Reproducing Kernel Gradient Smoothing Integration Technique in Galerkin Meshless Methods}, journal = {Journal of Computational Mathematics}, year = {2023}, volume = {41}, number = {3}, pages = {501--524}, abstract = {

Numerical integration poses greater challenges in Galerkin meshless methods than finite element methods owing to the non-polynomial feature of meshless shape functions. The reproducing kernel gradient smoothing integration (RKGSI) is one of the optimal numerical integration techniques in Galerkin meshless methods with minimum integration points. In this paper, properties, quadrature rules and the effect of the RKGSI on meshless methods are analyzed. The existence, uniqueness and error estimates of the solution of Galerkin meshless methods under numerical integration with the RKGSI are established. A procedure on how to choose quadrature rules to recover the optimal convergence rate is presented.

}, issn = {1991-7139}, doi = {https://doi.org/10.4208/jcm.2201-m2021-0361}, url = {http://global-sci.org/intro/article_detail/jcm/21395.html} }
TY - JOUR T1 - Theoretical Analysis of the Reproducing Kernel Gradient Smoothing Integration Technique in Galerkin Meshless Methods AU - Li , Xiaolin JO - Journal of Computational Mathematics VL - 3 SP - 501 EP - 524 PY - 2023 DA - 2023/02 SN - 41 DO - http://doi.org/10.4208/jcm.2201-m2021-0361 UR - https://global-sci.org/intro/article_detail/jcm/21395.html KW - Galerkin meshless method, Numerical integration, Quadrature rule, Error estimates, Element-free Galerkin method, Degree of precision. AB -

Numerical integration poses greater challenges in Galerkin meshless methods than finite element methods owing to the non-polynomial feature of meshless shape functions. The reproducing kernel gradient smoothing integration (RKGSI) is one of the optimal numerical integration techniques in Galerkin meshless methods with minimum integration points. In this paper, properties, quadrature rules and the effect of the RKGSI on meshless methods are analyzed. The existence, uniqueness and error estimates of the solution of Galerkin meshless methods under numerical integration with the RKGSI are established. A procedure on how to choose quadrature rules to recover the optimal convergence rate is presented.

Li , Xiaolin. (2023). Theoretical Analysis of the Reproducing Kernel Gradient Smoothing Integration Technique in Galerkin Meshless Methods. Journal of Computational Mathematics. 41 (3). 501-524. doi:10.4208/jcm.2201-m2021-0361
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