In this paper, we present a numerical method for solving, linear and nonlinear, weakly singular Fredholm integral equations of the second kind. The method utilizes Legendre wavelets constructed on the unit interval as a basis in the Galerkin method and reduces the solution of the Fredholm integral equation to the solution of a system of algebraic equations. The features of the wavelet coefficient matrices of weakly singular kernels are studied. Finally, numerical examples are presented to show the validity and efficiency of the technique.
Adibi H. and Assari P. ( 2009) Using CAS wavelets for numerical solution of Volterra integral equations of the second kind. Dynamics of Continuous, Discrete and Impulsive Systems A: Mathematical Analysis16: 673-685.
2.
Alipanah A. and Dehghan M. ( 2007) Numerical solution of the nonlinear Fredholm integral equations by positive definite functions. Applied Mathematics and Computation190: 1754-1761.
3.
Alpert BK ( 1993) A class of bases in L2 for the sparse representation of integral operators. SIAM Journal on Mathematical Analysis24: 246-262.
4.
Akyz-Daciolu A. ( 2004) Chebyshev polynomial solutions of systems of linear integral equations. Applied Mathematics and Computation151: 221-232.
5.
Babolian E., Marzban HR and Salmani M. ( 2008) Using triangular orthogonal functions for solving Fredholm integral equations of the second kind. Applied Mathematics and Computation201: 452-464.
6.
Blyth WF, May RL and Widyaningsih P. ( 2004) Volterra integral equations solved in Fredholm form using Walsh functions. ANZIAM Journal45: C269-C282.
7.
Cao Y., Huang M., Liu L. and Xuc Y. ( 2007) Hybrid collocation methods for Fredholm integral equations with weakly singular kernels. Applied Numerical Mathematics57: 549-561.
8.
Chen Z., Xu Y. and Zhao J. ( 1999) The discrete Petrov-Galerkin method for weakly singular integral equations. Journal of Integral Equations and Applications11: 1-35.
9.
Daubechies I. ( 1992) Ten Lectures on Wavelets. Philadelphia, Pennsylvania: IAM/CBMS.
10.
Delves LM and Mohammed JL ( 1983) Computational Methods for Integral Equations. Oxford: Cambridge University Press.
11.
Dinghua X. ( 1997) Numerical solutions for nonlinear Fredholm integral equations of the second kind and their superconvergence. Journal of Shanghai University1: 98-104.
12.
Gao J. and Jiang YL ( 2008) Trigonometric Hermite wavelet approximation for the integral equations of second kind with weakly singular kernel. Journal of Computational and Applied Mathematics215: 242-259.
13.
Hsiao C.-H (2009) Hybrid function method for solving Fredholm and Volterra integral equations of the second kind. Journal of Computational and Applied Mathematics230: 59-68.
14.
Kaneko H. and Xu Y. ( 1991) Numerical solutions for weakly singular Fredholm integral equations of the second kind. Applied Numerical Mathematics7: 167-177.
15.
Lepik U. and Tamme E. ( 2007) Solution of nonlinear Fredholm integral equations via the Haar wavelet method. Proceedings of the Estonian Academy of Sciences. Physics, Mathematics56: 17-27.
16.
Liu Y.(2009) Application of the Chebyshev polynomial in solving Fredholm integral equations. Mathematical and Computer Modelling50: 465-469.
17.
Mahmoudi Y. ( 2005) Wavelet Galerkin method for numerical solution of nonlinear integral equation. Applied Mathematics and Computation167: 1119-1129.
18.
Pedas A. and Vainikko T. ( 1997) Superconvergence of piece-wise polynomial collocations for nonlinear weakly singular integral equations. Journal of Integral Equations and Applications9: 379-406.
19.
Razzaghi M. and Yousefi SA ( 2001) The Legendre wavelets operational matrix of integration . International Journal of Systems Science32: 495-502.
20.
Shang X. and Han D. ( 2007) Numerical solution of Fredholm integral equations of the first kind by using linear Legendre multi-wavelets. Applied Mathematics and Computation191: 440-444.
21.
Wazwaz AM ( 1997) A First Course in Integral Equations. SingaporeWorld Scientific.
22.
Xiao JY, Wen LH and Zhang D. ( 2006) Solving second kind Fredholm integral equations by periodic wavelet Galerkin method. Applied Mathematics and Computation175: 508-518.
23.
Xinjian T., Zhicheng P., Tonglin Z. and Jian L. ( 2007) Wavelet numerical solutions for weakly singular Fredholm integral equations of the second kind. Wuhan University Journal of Natural Sciences12: 437-441.