English

Decomposition and conformal mapping techniques for the quadrature of nearly singular integrals

Numerical Analysis 2022-10-19 v1 Numerical Analysis

Abstract

Gauss-Legendre quadrature and the trapezoidal rule are powerful tools for numerical integration of analytic functions. For nearly singular problems, however, these standard methods become unacceptably slow. We discuss and generalize some existing methods for improving on these schemes when the location of the nearby singularity is known. We conclude with an application to some nearly singular surface integrals of viscous flow.

Keywords

Cite

@article{arxiv.2210.09954,
  title  = {Decomposition and conformal mapping techniques for the quadrature of nearly singular integrals},
  author = {William Mitchell and Abbie Natkin and Paige Robertson and Marika Sullivan and Xuechen Yu and Chenxin Zhu},
  journal= {arXiv preprint arXiv:2210.09954},
  year   = {2022}
}