An a posteriori parameter choice rule for the truncation regularization method for solving backward parabolic problems

• Autores: Yuan-Xiang Zhang, Chu-Li Fu, Yun-Jie Ma
• Localización: Journal of computational and applied mathematics, ISSN 0377-0427, Vol. 255, Nº 1, 2014, págs. 150-160
• Idioma: inglés
• DOI: 10.1016/j.cam.2013.04.046
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• Resumen

  • The goal of this paper is to investigate a backward parabolic equation with time-dependent coefficient by the truncation method (TM). The key point to our paper is that we give an a posteriori choice of regularization parameter for the TM, with which the convergence estimates between the exact solution and the regularized approximation are obtained. Numerical implementation sheds light on the accuracy and efficiency of the proposed method.