Applied Mathematics and Mechanics (English Edition) ›› 1980, Vol. 1 ›› Issue (2): 175-185.

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The Difference Methods for the Solution of Singular-Perturbation for the Elliptic-Parabolic Differential Equation

苏煜城, 吴启光   

  1. Nanking University
  • 收稿日期:1979-12-26 出版日期:1980-05-18 发布日期:1980-05-18

The Difference Methods for the Solution of Singular-Perturbation for the Elliptic-Parabolic Differential Equation

Su Yu-cheng, Wu Chi-kuang   

  1. Nanking University
  • Received:1979-12-26 Online:1980-05-18 Published:1980-05-18

摘要: In this paper it is discussed the difference method for the solution of singular perturbation problems for the elliptic equations, involving small parameter in the higher derivatives. As ε= 0 the original equations are degenerated into the parabolic equations.Authors constructed special difference schemes by means of the boundary layer properties of the solutions of these problems as well as investigated the convergence of this scheme and asymptotic behaviour of the solutions. Finally, a numerical example is given.

关键词: wavelet analysis, filter, trigonometric functions, analytic construction

Abstract: In this paper it is discussed the difference method for the solution of singular perturbation problems for the elliptic equations, involving small parameter in the higher derivatives. As ε= 0 the original equations are degenerated into the parabolic equations.Authors constructed special difference schemes by means of the boundary layer properties of the solutions of these problems as well as investigated the convergence of this scheme and asymptotic behaviour of the solutions. Finally, a numerical example is given.

Key words: wavelet analysis, filter, trigonometric functions, analytic construction

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