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Fourier regularization of an one-dimensional non-standard inverse heat conduction problem. (Chinese. English summary) Zbl 1007.35098

Summary: The following non-standard inverse heat conduction problem arises in various applications \[ \begin{cases} u_t+u_x= u_{xx}, & 0\leq x<\infty,\;0<t <\infty,\\ u(1,t)=g(t), & 0\leq t<\infty,\\ u(x,0)=0, & x\geq 0.\end{cases} \] This problem is seriously ill-posed. In this paper, this problem is regularized by a Fourier method and an error estimate is given.

MSC:

35R25 Ill-posed problems for PDEs
35R30 Inverse problems for PDEs
65N21 Numerical methods for inverse problems for boundary value problems involving PDEs