Numerical Implementation of Nonlinear Implicit Iterative Method for Solving Ill-posed Problems

Автор: Jianjun Liu, Zhe Wang, Guoqiang He, Chuangang Kang

Журнал: International Journal of Information Technology and Computer Science(IJITCS) @ijitcs

Статья в выпуске: 4 Vol. 3, 2011 года.

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Many nonlinear regularization methods may converge to local minima in numerical implementation for the complexity of nonlinear operator. Under some not very strict assumptions, we implement our proposed nonlinear implicit iterative method and have a global convergence results. Using the convexity property of the modified Tikhonov functional, it combines nonlinear implicit iterative method with a gradient method for solving ill-posed problems. Finally we present two numerical results for integral equation and parameter identification.

Nonlinear, gradient method, regularization, implicit iterative

Короткий адрес: https://sciup.org/15011629

IDR: 15011629

Список литературы Numerical Implementation of Nonlinear Implicit Iterative Method for Solving Ill-posed Problems

  • A. N. Tikhonov, A. S. Leonov and A. G. Yagola, Nonlinear Ill-posed Problems. Chapman and Hall: London, 1998.
  • H. W. Engl, M. Hanke and A. Neubauer, Regularization of Inverse Problems. Kluwer: Dordrecht, 1996.
  • L. Jianjun, H. Guoqiang and K.Chuangang, “Nonlinear Implicit Iterative Method for Solving Nonlinear Ill-posed Problems,”. Appl. Math. Mech. –Engl. Ed. Shanghai University Press. ShangHai, vol. 9, pp. 1183-1192, April 2009.
  • L. Jianjun, Nonlinear implicit iterative method and regularization GMRES method for solving nonlinear ill-posed problems[D].(in Chinese) Shanghai University, 2008.
  • M. Hanke, “A Regularizing Levenberg-Marquardt Scheme with Applications to Inverse Ground-water Filtration Problem,”. Inverse Problems. IOP Publlishing. Bristol, vol. 13, pp. 79-95, 1997
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