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Paper   IPM / M / 2357
School of Mathematics
  Title:   Numerical procedures for recovering a time dependent coefficient in a parabolic differential equation
  Author(s): 
1.  H. Azari
2.  W. Allegretto
3.  Y. Lin
4.  S. Zhang
  Status:   Published
  Journal: Dynam. Contin. Discrete Impuls. Systems
  Vol.:  11
  Year:  2004
  Pages:   181-199
  Supported by:  IPM
  Abstract:
In this paper we study a finite difference approximation to an inverse problem of finding the function u(x,t) and the unknown positive coefficient a(t) in a parabolic initial-boundary value problem. The backward Euler scheme is studied and its convergence is proved via the application of the discrete maximum principle. Error estimates for u and a, and some experimental numerical results using the newly proposed numerical procedure are presented.

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