A regularization method for solving a nonlinear backward inverse heat conduction problem using discrete mollification method
- Faculty of Mathematics, K. N. Toosi University of Technology, P.O. Box 16315-1618, Tehran, Iran.
Received: 05-05-2017
Revised: 23-09-2017
Accepted: 04-11-2017
Published in Issue 27-07-2025
Copyright (c) 2025 Soheila Bodaghi, Ali Zakeri (Author)

This work is licensed under a Creative Commons Attribution 4.0 International License.
How to Cite
Abstract
The present essay scrutinizes the application of discrete mollification as a filtering procedure to solve a nonlinear backward inverse heat conduction problem in one dimensional space. These problems are seriously ill-posed. So, we combine discrete mollification and space marching method to address the ill-posedness of the proposed problem. Moreover, a proof of stability and convergence of the aforementioned algorithm is provided. Finally, the results of this paper have been illustrated by some numerical examples.
References
- [1] D. A. Murio, Mollification and space marching, In: Woodbury, K (ed.) Inverse Engineering Handbook. CRC Press (2002).
- [2] M. Garshasbi, H. Dastour, Estimation of unknown boundary functions in an inverse heat conduction
- problem using a molified marching scheme, Numer. Algorithms. 68 (2015) 769-790.
- [3] C. D. Acosta, C. E. Mejia, Stabilization of explicit methods for convection diffusion equations by
- discrete mollification, Comput. Math. Appl. 55 (2008) 368-380.
- [4] C. E. Mejia, D. A. Murio, Mollified hyperbolic method for coefficient identification problems, Comput. Math. Appl. 26(5) (1993) 1-12.
- [5] C. E. Mejia, C. D. Acosta, K.I. Saleme, Numerical identification of a nonlinear diffusion coefficient by discrete mollification, Comput. Math. Appl. 62 (2011) 2187-2199.
- [6] C. Coles, D.A. Murio, Identification of Parameters in the 2-D IHCP, Comput. Math. Appl. 40 (2000)
- 939-956.
- [7] C. E. Mejia, D. A. Murio, Numerical solution of generalized IHCP by discrete mollification, Comput.
- Math. Appl. 32(2) (1996) 33-50.
- [8] X.T. Xiong, C. L. Fu, Z. Qian, Two numerical methods for solving a backward heat conduction
- problem, Appl. Math. Comput. 179 (2006) 370-377.
- [9] A. N. Tikhonov, V. Arsenin, F. John, Solutions of ill-posed problems. Willey (1977)
- [10] N. H. Tuan, D. D. Trong, P. H. Quan, A modifed integral equation method of the semilinear backward
- heat problem, Appl. Math. Comput. 217(12) (2011) 5177-5185.
- [11] Y. J. Ma, C. L Fu, Y. X. Zhang, Solving a backward heat conduction problem by variational method,
- Appl. Math. Comput. 219 (2012) 624-634.
- [12] J. Sun, X. L. Cheng, Iterative methods for the forward-backward heat equation in two-dimension,
- Appl. Math. J. 25 (1) (2010)101-111.
- [13] C. Shi, C. Wang, G. Zheng, T. Wei, A new a posteriori parameter choice strategy for the convolution
- regularization of the space-fractional backward diffusion problem, J. Comput. Appl. Math. 279 (2015)
- 233-248.
- [14] Z. Zhao, Z. Meng, A modified Tikhonov regularization method for a backward heat equation, Inverse
- Probl. Sci. Eng. 19(8) (2011)1175-1182.
- [15] W. Chenga, Y. J. Mab, C.L. Fuc, A regularization method for solving the radially symmetric backward heat conduction problem, Appl. Math. Lett. 30(2014) 38-43.
- [16] F. Ternat , P. Daripa , O. Orellana, On an inverse problem: Recovery of non-smooth solutions to
- backward heat equation, Appl. Math. Model. 36 (2012) 4003-40019.
- [17] G. Baker, R. E. Caflisch, M. Seigel, Singularity formation during RayleighTaylor instability, J. Fluid
- Mech. 252 (1993) 51-78.
- [18] R. Caflisch, O. Orellana, Singular solutions and illposedness for the evolution of vortex sheets, SIAM
- J. Math. Anal. 20 (1989) 293-307.
- [19] D. D. Joseph, J. C. Saut, Short-wave instability and ill-posed initial value problems, Theor. Comput.
- Fluid Dyn. 1 (1990) 191-227.
- [20] D. W. Moore, The spontaneous appearance of a singularity in the shape of an evolving vortex sheet,
- Proc. Roy. Soc. Lond. A 365 (1979) 105-119
- [21] D. N. Hao, A mollification method for ill-posed problems, Numer. Math. 68 (1994) 469-506.
- [22] F. Ternat, O. Orellana, P. Daripa, Two stable methods with numerical experiments for solving the
- backward heat equation, Appl. Numer. Math. 61 (2) (2011) 266-284.
- [23] J. R. Wang, Shannon wavelet regularization methods for a backward heat equation, J. Comput.
- Appl. Math. 235 (9) (2011) 3079-3086.
- [24] R. Di Nardo, Nonlinear elliptic and parabolic equations with measure data, Ph.D Thesis, Dipartimento di Matematica R. Caccioppoli, Universita degli Studi di Napoli Federico II, 2007-2008.
- [25] S. Yeganeh, R. Mokhtari, J. S. Hesthaven, Space-dependent source determination in a timefractional diffusion equation using a local discontinuous Galerkin method, BIT Numer Math, DOI
- 10.1007/s10543-017-0648-y, (2017).
10.57647/