A Wavelet-Galerkin method for a singularly perturbed convection-dominated diffusion equation

There are few techniques available to numerically solve singularly perturbed parabolic problems. In this paper we show that the Wavelet-Galerkin method is a very effective tool in numerically solving such problems. The method is then tested on several examples and a comparison with the method of reduction order is made. It is shown that the Wavelet-Galerkin method yields better results.

[1]  Arindama Singh,et al.  A numerical method for singularly perturbed systems of linear two-point boundary-value problems using partial decoupling , 1992 .

[2]  A. Avudainayagam,et al.  Wavelet‐Galerkin solutions of quasilinear hyperbolic conservation equations , 1999 .

[3]  Jinchao Xu,et al.  Galerkin-wavelet methods for two-point boundary value problems , 1992 .

[4]  A. Avudainayagam,et al.  Wavelet-Galerkin method for integro-differential equations , 2000 .

[5]  M. K. Kadalbajoo,et al.  The alternating group explicit (AGE) method for singularly perturbed boundary value problems , 1995 .

[6]  T. Q. Ye,et al.  Instability analysis of prismatic members by wavelet-Galerkin method , 1999 .

[7]  Tong Kang,et al.  Some A Posteriori Error Estimates of the Finite-Difference Streamline-Diffusion Method for Convection-Dominated Diffusion Equations , 2001, Adv. Comput. Math..

[8]  Chyi Hwang,et al.  A wavelet-Galerkin method for solving population balance equations , 1996 .

[9]  Ingrid Daubechies,et al.  Ten Lectures on Wavelets , 1992 .

[10]  Tariq Aziz,et al.  A spline method for second-order singularly perturbed boundary-value problems , 2002 .

[11]  Xingye Yue,et al.  Local expnentially fitted finite element schemes for singularly perturbed convention---diffiusion problems , 2001 .

[12]  H. Weitzner,et al.  Perturbation Methods in Applied Mathematics , 1969 .

[13]  S. Jaffard Wavelet methods for fast resolution of elliptic problems , 1992 .

[14]  C. Hwang,et al.  THE COMPUTATION OF WAVELET‐GALERKIN APPROXIMATION ON A BOUNDED INTERVAL , 1996 .

[15]  Pablo González-Vera,et al.  A numerical scheme to approximate the solution of a singularly perturbed nonlinear differential equation , 1991 .

[16]  Sam Qian,et al.  Wavelets and the Numerical Solution of Partial Differential Equations , 1993 .

[17]  Mohamed El-Gamel,et al.  On the solution a of second order singularly-perturbed boundary value problem by the Sinc-Galerkin method , 2005 .

[18]  Y. N. Reddy,et al.  Method of reduction of order for solving singularly perturbed two-point boundary value problems , 2003, Appl. Math. Comput..

[19]  Lutz Tobiska,et al.  Numerical Methods for Singularly Perturbed Differential Equations , 1996 .

[20]  S. Mallat A wavelet tour of signal processing , 1998 .

[21]  Sam Qian,et al.  Wavelets and the numerical solution of boundary value problems , 1993 .