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https://hdl.handle.net/2440/85356
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Type: | Journal article |
Title: | DIV-CURL vector quasi-interpolation on a finite domain |
Author: | Chen, F. Suter, D. |
Citation: | Mathematical and Computer Modelling, 1999; 30(1-2):179-204 |
Publisher: | Elsevier |
Issue Date: | 1999 |
ISSN: | 0895-7177 1872-9479 |
Statement of Responsibility: | F. Chen and D. Suter |
Abstract: | This paper presents a quasi-interpolation method for DIV-CURL vector splines in two dimensions on both infinite and finite domains. The quasi-interpolant is a linear combination of translates of dilates of a basis function. In particular, our discussion focuses on the approximation of a vector-valued function defined on a finite domain for practical application purposes. In such a case, edge functions are introduced for preserving the convergence of the quasi-interpolant on the boundaries. These edge functions can be determined by means of the polynomial reproduction properties of the quasi-interpolation. The analysis of convergence has shown that the quasi-interpolant defined on a regular grid of whole R2 can reproduce linear polynomial and has an O(h2 | log h|) error bound, while the modified quasi-interpolant defined on a square I2 has an O(h) error bound if the edge functions are designed for reproducing a constant. |
Keywords: | Quasi-interpolation; Polynomial reproduction; DIV-CURL vector splines; Edge functions |
Rights: | ©1999 Elsevier Science Ltd. |
DOI: | 10.1016/S0895-7177(99)00124-7 |
Published version: | http://dx.doi.org/10.1016/s0895-7177(99)00124-7 |
Appears in Collections: | Aurora harvest 7 Computer Science publications |
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