Wavelet-Galerkin method for solving parabolic equations in finite domains. (English) Zbl 0987.65094

Ho, S. L.; Yang, S. Y.

Finite Elem. Anal. Des. 37, No. 12, 1023-1037 (2001).

Summary: A novel wavelet-Galerkin method tailored to solve parabolic equations in finite domains is presented. The emphasis of the paper is on the development of the discretization formulations that are specific to finite domain parabolic equations with arbitrary boundary conditions based on weak form functionals. The proposed method also deals with the development of algorithms for computing the associated connection coefficients at arbitrary points. Here the Lagrange multiplier method is used to enforce the essential boundary conditions. The numerical results on a two-dimensional transient heat conducting problem are used to validate the proposed wavelet-Galerkin algorithm as an effective numerical method to solve finite domain parabolic equations.

MSC:

65M60	Finite element, Rayleigh-Ritz and Galerkin methods for initial value and initial-boundary value problems involving PDEs
35K05	Heat equation
65T60	Numerical methods for wavelets

Keywords:

wavelet-Galerkin method; connection coefficient; parabolic equation; algorithms; Lagrange multiplier method; numerical results; transient heat conducting problem