首页> 外文期刊>Taiwanese journal of mathematics >SPLITTING EXTRAPOLATIONS FOR SOLVING BOUNDARY INTEGRAL EQUATIONS OF MIXED BOUNDARY CONDITIONS ON POLYGONS BY MECHANICAL QUADRATURE METHODS
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SPLITTING EXTRAPOLATIONS FOR SOLVING BOUNDARY INTEGRAL EQUATIONS OF MIXED BOUNDARY CONDITIONS ON POLYGONS BY MECHANICAL QUADRATURE METHODS

机译:机械求积法求解多边形上混合边界条件的边界积分方程。

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摘要

To solve the boundary integral equations (BIE) of mixed boundary conditions, we propose the mechanical quadrature methods (MQM) using specific quadrature rule to deal with weakly singular integrals. Denote h, as the mesh width of a curved edge Gamma(m) (m = 1,..., d) of polygons. Then the multivariate asymptotic expansions of solution errors are found to be O(h(3)), where h = max(1 <= m <= d) h(m). Hence, by using the splitting extrapolation methods (SEM), the high convergence rates as O(h(5)) can be achieved. Moreover, numerical examples are provided to support our theoretical analysis.
机译:为了求解混合边界条件的边界积分方程(BIE),我们提出了一种使用特定正交规则处理弱奇异积分的机械正交方法(MQM)。将h表示为多边形的弯曲边缘Gamma(m)(m = 1,...,d)的网格宽度。然后发现解误差的多元渐近展开为O(h(3)),其中h = max(1 <= m <= d)h(m)。因此,通过使用分裂外推法(SEM),可以实现O(h(5))的高收敛速率。此外,提供了数值示例来支持我们的理论分析。

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