A note on the rate of convergence of integration schemes for closed surfaces

Computational and Applied Mathematics(2024)

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摘要
In this paper, we issue an error analysis for integration over discrete surfaces using the surface parametrization presented in Praetorius and Stenger (Arch Numer Softw 1(1):2022, 2022) as well as prove why even-degree polynomials utilized for approximating both the smooth surface and the integrand exhibit a higher convergence rate than odd-degree polynomials. Additionally, we provide some numerical examples that illustrate our findings and propose a potential approach that overcomes the problems associated with the original one.
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关键词
Numerical integration,Surface integrals,Convergence rates,Closest point projection,Chebyshev–Lobatto nodes
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