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Simultaneous determination of unknown coefficients in a parabolic equation

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A numerical method for an inverse problem of simultaneously determining unknown coefficients in a parabolic equation subject to the specifications of the solution at boundary points and given integral of the solution on space variable along with the usual initial and boundary conditions is proposed. The approach based on trace-type functional formulation of the problem is used. To avoid instability in this approach the Tikhonov regularization method is applied. Some numerical examples using the proposed algorithm are presented.

Keywords: Tikhonov regularization; finite-difference method; inverse problem; numerical algorithm; parabolic equation; unknown coefficients

Document Type: Research Article


Affiliations: 1: Baskent University, Ankara, Turkey 2: Faculty of Engineering, Baskent University, Ankara, Turkey 3: Faculty of Engineering, Sakarya University, Sakarya, Turkey

Publication date: October 1, 2008

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