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Science in China Series A: Mathematics

, Volume 47, Issue 3, pp 453–472 | Cite as

The unconditional stable and convergent difference methods with intrinsic parallelism for quasilinear parabolic systems

  • Zhou Yulin 
  • Yuan Guangwei 
  • Shen Longjun 
Article

Abstract

A kind of the general finite difference schemes with intrinsic parallelism for the boundary value problem of the quasilinear parabolic system is studied without assuming heuristically that the original boundary value problem has the unique smooth vector solution. By the method of a priori estimation of the discrete solutions of the nonlinear difference systems, and the interpolation formulas of the various norms of the discrete functions and the fixed-point technique in finite dimensional Euclidean space, the existence and uniqueness of the discrete vector solutions of the nonlinear difference system with intrinsic parallelism are proved. Moreover the unconditional stability of the general finite difference schemes with intrinsic parallelism is justified in the sense of the continuous dependence of the discrete vector solution of the difference schemes on the discrete data of the original problems in the discrete W 2 (2,1) norms. Finally the convergence of the discrete vector solutions of the certain difference schemes with intrinsic parallelism to the unique generalized solution of the original quasilinear parabolic problem is proved.

Keywords

difference scheme intrinsic parallelism quasilinear parabolic system convergence stability 

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Copyright information

© Science in China Press 2004

Authors and Affiliations

  1. 1.Laboratory of Computational Physics, Center of Nonlinear StudiesInstitute of Applied Physics and Computational MathematicsBeijingChina

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