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- W4298012009 abstract "We present convergence theory for corrected quadrature rules on uniform Cartesian grids for functions with a point singularity. We begin by deriving an error estimate for the punctured trapezoidal rule, and then derive error expansions. We define the corrected trapezoidal rules, based on the punctured trapezoidal rule, where the weights for the nodes close to the singularity are judiciously corrected based on these expansions. Then we define the composite corrected trapezoidal rules for a larger family of functions using series expansions around the point singularity and applying corrected trapezoidal rules appropriately. We prove that we can achieve high order accuracy by using a sufficient number of correction nodes around the point singularity and of expansion terms." @default.
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- W4298012009 date "2022-08-17" @default.
- W4298012009 modified "2023-10-18" @default.
- W4298012009 title "Convergence of a class of high order corrected trapezoidal rules" @default.
- W4298012009 doi "https://doi.org/10.48550/arxiv.2208.08216" @default.
- W4298012009 hasPublicationYear "2022" @default.
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