Quadrature methods for periodic singular and weakly singular Fredholm integral equations
Journal of Scientific Computing
On the boundary element method for some nonlinear boundary value problems
Numerische Mathematik
On the collocation method for a nonlinear boundary integral equation
Journal of Computational and Applied Mathematics
An extrapolation method for a class of boundary integral equations
Mathematics of Computation
SIAM Journal on Scientific Computing
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We study the numerical solution procedure for two-dimensional Laplace's equation subjecting to non-linear boundary conditions. Based on the potential theory, the problem can be converted into a nonlinear boundary integral equations. Mechanical quadrature methods are presented for solving the equations, which possess high accuracy order O(h 3) and low computing complexities. Moreover, the algorithms of the mechanical quadrature methods are simple without any integration computation. Harnessing the asymptotical compact theory and Stepleman theorem, an asymptotic expansion of the errors with odd powers is shown. Based on the asymptotic expansion, the h 3驴驴Richardson extrapolation algorithms are used and the accuracy order is improved to O(h 5). The efficiency of the algorithms is illustrated by numerical examples.