Abstract
High-accuracy numerical quadrature methods for integrals of singular periodic functions are proposed. These methods are based on the appropriate Euler-Maclaurin expansions of trapezoidal rule approximations and their extrapolations. They are subsequently used to obtain accurate quadrature methods for the solution of singular and weakly singular Fredholm integral equations. Throughout the development the periodic nature of the problem plays a crucial role. Such periodic equations are used in the solution of planar elliptic boundary value problems such as those that arise in elasticity, potential theory, conformal mapping, free surface flows, etc. The use of the quadrature methods is demonstrated with numerical examples.
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Sidi, A., Israeli, M. Quadrature methods for periodic singular and weakly singular Fredholm integral equations. J Sci Comput 3, 201–231 (1988). https://doi.org/10.1007/BF01061258
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DOI: https://doi.org/10.1007/BF01061258