A New Regularization Method for a Class of Ill-Posed Cauchy Problems

Authors

  • Nguyen Huy Tuan Faculty of Mathematics, SaiGon University, HoChiMinh City, VietNam
  • Dang Duc Trong Faculty of Mathematics and Computer Sciences, University of Natural Science, HoChiMinh City, VietNam
  • Pham Hoang Quan Faculty of Mathematics, SaiGon University, HoChiMinh City, VietNam

DOI:

https://doi.org/10.5644/SJM.06.2.04

Keywords:

Elliptic equation, Ill-posed problem, Cauchy problem, contraction principle

Abstract

In this paper, the Cauchy problem for the elliptic equation is investigated. We use a quasireversibility method to solve it and present convergence estimates under different assumptions for the exact solution. Some numerical tests illustrate that the proposed method is feasible and effective.

 

2000 Mathematics Subject Classification. 35K05, 35K99, 47J06, 47H10

Downloads

Download data is not yet available.

References

Sh. L. Abdulkerimov, Regularization of an ill-posed Cauchy problem for evolution equations in a Banach space, Azerbaidˇzan. Gos. Univ. Uˇcen. Zap., Fiz. i Mat., 1 (1977), 32-36 (in Russian).

F. B. Belgacem, Why is the Cauchy problem severely ill-posed, Inverse Problems, 23 (2007), 823-836.

H. W. Cheng, J. F. Huang and T. J. Leiterman, An adaptive fast solver for the modified Helmholtz equation in two dimensions, J. Comput. Phys., 211 (2006), 616–637.

L. Elden, F. Berntsson and T. Reginska, Wavelet and Fourier method for solving the sideways heat equation, SIAM J. Sci. Comput., 21 (2000), 2187-2205.

L. Elliott, P. J. Heggs, D. B. Ingham, D. Lesnic, L. Marin and X. Wen, Conjugate gradient-boundary element solution to the Cauchy problem for Helmholtz-type equations, Comput. Mech., 31 (2003), 367–377.

V. B. Glasko, E. A. Mudretsova and V. N. Strakhov, Inverse Problems in the Gravimetry and Magnetometry, Ill-Posed Problems in the Natural Science ed A N Tikhonov and A V Goncharskii (Moscow: Moscow State University Press) (1987), pp 89-102 (in Russian).

D. N. Hao, N. V. Duc and D. Lesnic, A non-local boundary value problem method for the Cauchy problem for elliptic equations. Inverse Probl., 25 (5) Article ID 055002, (2009), 27 p.

V. Isakov, Inverse Problems for Partial Differential Equations, 2nd edn, (Berlin: Springer) (2006).

A. H. Juffer, E. F. F. Botta, B. A. M. V. Keulen, A. V. D. Ploeg and H. J. C. Berendsen, The electric potential of a macromolecule in a solvent: a fundamental approach, J. Comput. Phys., 97 (1991), 144–171.

R. Lattes and J.-L. Lions, The method of quasi-reversibility. Applications to partial differential equations, Modern Analytic and Computational Methods in Science and Mathematics, No. 18, American Elsevier Publishing Co., Inc., New York, (1969) (Translated from the French edition and edited by Richard Bellman).

M. M. Lavrentev , V. G. Romanov and G. P. Shishatskii, Ill-posed Problems in Mathematical Physics and Analysis, (1986) (Providence, RI: American Mathematical Society).

D. Lesnic, L. Elliott and D. B. Ingham, The boundary element solution of the Laplace and biharmonic equations subjected to noisy boundary data, Int. J. Numer. Methods Eng., 43 (1998), 479-492.

L. Marin, L. Elliott, P. J. Heggs, D. B. Ingham, D. Lesnic and X. Wen, BEM solution for the Cauchy problem associated with Helmholtz-type equations by the Landweber method, Eng. Anal. Bound. Elem., 28 (2004), 1025–1034.

I. V. Melnikova and A. Filinkov, Abstract Cauchy Problems: Three Approaches (2001), (Boca Raton, FL: Chapman and Hall).

R. A. Pitfield and G. T. Symm, Solution of Laplaces equation in two dimensions, NPL Report NAC44, (1974).

W. B. Russell, W. R. Schowalter and D. A. Sville, Colloidal Dispersions, Cambridge University Press, Cambridge, (1991).

D. D. Trong and N. H. Tuan, Regularization and error estimates for nonhomogeneous backward heat problems, Electron. J. Diff. Eqn., 04 (2006), 1–10.

P. N. Vabishchevich and A. Y. Denisenko, Regularization of nonstationary problems for elliptic equations, J. Eng. Phys. Thermophys., 65 (1993), 1195-1199.

P. N. Vabishchevich and P. A. Pulatov, A method of numerical solution of the Cauchy problem for elliptic equations, Vestnik Moskov. Univ. Ser. XV Vychisl. Mat. Kibernet., 27 (1994), 3-8 (in Russian).

C. F. Weber, Analysis and solution of the ill-posed inverse heat conduction problem, Int. J. Heat Mass Transf., 24 (1981), 1783-1792.

Downloads

Published

11.06.2024

How to Cite

Tuan, N. H., Trong, D. D., & Quan, P. H. (2024). A New Regularization Method for a Class of Ill-Posed Cauchy Problems. Sarajevo Journal of Mathematics, 6(2), 189–201. https://doi.org/10.5644/SJM.06.2.04

Issue

Section

Articles