Semester
Summer
Date of Graduation
2003
Document Type
Dissertation
Degree Type
PhD
College
Eberly College of Arts and Sciences
Department
Mathematics
Committee Chair
Yuesheng Xu.
Abstract
In this thesis we develop fast wavelet collocation methods for integral equations of the second kind with weakly singular kernels over polygons . For this purpose, we construct multiscale wavelet functions and collocation functionals having vanishing moments. Moreover, we propose several truncation strategies, which lead to fast algorithms, for the coefficient matrix of the corresponding discrete system. Critical issues for numerical implementation of such methods are considered, such as choices of practical truncation strategies, numerical integration of weakly singular integrals, error controls of numerical quadrature and numerical solutions of resulting compressed linear systems. Numerical experiments are given to demonstrate proposed ideas and methods. Finally, parallel computing using developed methods is investigated.;That this work received partial support from the US NSF grant EPSCoR-0132740.
Recommended Citation
Wang, Yi, "Fast wavelet collocation methods for second kind integral equations on polygons" (2003). Graduate Theses, Dissertations, and Problem Reports. 1904.
https://researchrepository.wvu.edu/etd/1904