Abstraet--Stenger's formula for numerical computation of principal value integrals is used to determine the singular behavior of solutions of homogeneous Cauchy singular integral equations near the end-points of the domain of integration.
Computing the singular behavior of solutions of Cauchy singular integral equations with variable coefficients
โ Scribed by J. Li; R.P. Srivastav
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 319 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0893-9659
No coin nor oath required. For personal study only.
โฆ Synopsis
A numerical technique to determine the singular behavior of the solution of Cauchy singular integral equations (CSIE) with variable coefficients is proposed. The fundamental solution, which is a solution of the corresponding homogeneous equation, is constructed by a quadraturecollocation scheme. This leads to a system of nonlinear equations to approximate the exponents of singularity. Newton's method has been found to yield a useful approximation to these exponents. Once we have numerically obtained the weight function which determines the behavior of the solution of Cauchy singular integral equation, it can be used to solve a variety of nonhomogeneous CSIE with variable coefficients.
๐ SIMILAR VOLUMES
A numerical solution method is presented for singular integral equations of the second kind with a generalized Cauchy kernel and variable coe$cients. The solution is constructed in the form of a product of regular and weight functions. The weight function possesses complex singularities at the ends
Galerkin methods are used to approximate the singular integral equation with solution ฯ having weak singularity at the endpoint -1, where a, b = 0 are constants. In this case ฯ is decomposed as ฯ 2ฮฑ -< ยต < 1, the error estimate under maximum norm is proved to be O(n 2ฮฑ--ยต+ ), where = min{ฮฑ, 1 2 }
This study presents an extension of the piecewise quadratic polynomial technique to solve singular integral equations with logarithmic-and Hadamard-type singularities. For completeness and continuity, the evaluation of the weights for logarithmic-, Cauchy-and Hadamard-type singularities are given ex