Quadrature solution of singular integral equations—I

Approximate solution of singular integral equations

K e y w o r d s I n t e g r a l equations, Cauchy type, Singular kernels. 1. I N T R O D U C T I O N Singular integral equations of the first kind, with a Cauchy type singular kernel, over a finite interval can be represented by the general equation f f _ l f(t)[ko(t,x)+k(t,x)]dt = g(x), 1 < x < 1, (1.1) 1 where ko(t, x) x) t) 0) (1.2) t x ' and k are regular square in tegrab le funct ions of t...

Simple Quadrature for Singular Integral Equations with Variable Coeecients

A simple quadrature rule for the solution of second-kind singular integral equations with variable coeecients is constructed and investigated. This method to calculate numerically singular integrals uses classical Jacobi quadra-tures. The major advantage is its simplicity. The proposed method is conver-gent under a reasonable assumption on the smoothness of the solution. It has a higher converg...

Quadrature methods for periodic singular and weakly singular Fredholm integral equations

High-accuracy numerical quadrature methods for integrals of singular periodic functions are proposed. These methods are based on the appropriate Euter 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 develo...

Numerical Solution of Singular IVPs of Lane-Emden Type Using Integral Operator and Radial Basis Functions

Numerical solution of a type of weakly singular nonlinear Volterra integral equation by Tau Method

‎In this paper‎, ‎a matrix based method is considered for the solution of a class of nonlinear Volterra integral equations with a kernel of the general form $s^{beta}(t-s)^{-alpha}G(y(s))$ based on the Tau method‎. ‎In this method‎, ‎a transformation of the independent variable is first introduced in order to obtain a new equation with smoother solution‎. ‎Error analysis of this method is also ...