Compact local stencils employed with integrated RBFs for fourth-order differential problems
Article
Article Title | Compact local stencils employed with integrated RBFs for fourth-order differential problems |
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Article Category | Article |
Authors | Hoang-Trieu, T.-T. (Author), Mai-Duy, N. (Author) and Tran-Cong, T. (Author) |
Journal Title | Structural Longevity |
Journal Citation | 6 (2), pp. 93-107 |
Number of Pages | 15 |
Year | 2011 |
Place of Publication | Duluth, GA. United States |
Digital Object Identifier (DOI) | https://doi.org/10.3970/sl.2011.006.093 |
Web Address (URL) | http://www.techscience.com/doi/10.3970/sl.2011.006.093.html |
Abstract | In this paper, new compact local stencils based on integrated radial basis functions (IRBFs) for solving fourth-order ordinary differential equations (ODEs) and partial differential equations (PDEs) are presented. The integration constants arising from the construction of IRBFs are exploited to incorporate into the local IRBF approximations values of the ODEs/PDEs at selected nodal points. The proposed stencils, which lead to sparse system matrices, are numerically validated through the solution of several analytic test problems. Numerical results indicate that their solutions converge very fast with grid refinement. |
Keywords | compact local approximations; high-order ODEs; high-order PDEs; integrated radial basis functions |
ANZSRC Field of Research 2020 | 490409. Ordinary differential equations, difference equations and dynamical systems |
490101. Approximation theory and asymptotic methods | |
409999. Other engineering not elsewhere classified | |
Public Notes | Tech Science Press © 2011. |
Byline Affiliations | Computational Engineering and Science Research Centre |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q1v5z/compact-local-stencils-employed-with-integrated-rbfs-for-fourth-order-differential-problems
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