Abstract
We construct new projection schemes of digitization of ill-posed problems, which are optimal in the sense of the amount of discrete information used. We establish that the application of self-adjoint projection schemes to digitization of equations with self-adjoint operators is not optimal.
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References
J. F. Traub and H. Wózniakowski,A General Theory of Optimal Algorithms, Academic Press, New York (1980).
S. V. Pereverzev,Optimization of Methods for the Approximate Solution of Operator Equations [in Russian], Institute of Mathematics, Ukrainian Academy of Sciences, Kiev (1996).
R. Plato and G. Vainikko, “On the regularization of the Ritz-Galerkin method for solving ill-posed problems,”Uchen. Zap. Tart. Univ., Issue 863, 3–17 (1989).
R. Plato and G. Vainikko, “On the regularization of projection methods for solving ill-posed problems,”Numer. Math.,57, 63–70 (1990).
S. V. Pereverzev, “Optimization of projection methods for solving ill-posed problems,”Computing,55, 113–124 (1995).
S. G. Solodkii, “On the digitization of ill-posed problems,”Zh. Vychisl. Mat. Mat. Fiz. 36, No. 8, 15–22 (1996).
S. G. Solodkii, “Information complexity of projection algorithms of solution of Fredholm equations of the first kind,”Ukr. Mat. Zh.,50, No. 5, 699–711 (1998).
V. K. Ivanov, V. V. Vasin, and V. P. Tanana,Theory of Linear Ill-Posed Problems and Its Applications [in Russian], Nauka, Moscow (1978).
A. N. Tikhonov and V. Ya. Arsenin,Methods for the Solution of Ill-Posed Problems [in Russian], Nauka, Moscow (1979).
G. M. Vainikko and A. Yu. Veretennikov,Iterative Procedures in Ill-Posed Problems [in Russian], Nauka, Moscow (1986).
A. V. Goncharskii, A. S. Leonov, and A. G. Yagola, “Finite-difference approximation of linear ill-posed problems,”Zh. Vychisl. Mat. Mat. Fiz. 14, No. 1, 15–24 (1974).
W. Dahmen, A. Kunoth, and R. Schneider, “Operator equations, multiscale concepts and complexity,”Lect. Appl. Math.,32, 225–261 (1996).
K. I. Babenko, “On the approximation of periodic functions of many variables by trigonometric polynomials,”Dokl. Akad. Nauk SSSR,132, No. 2, 247–250 (1960).
A. B. Bakushinskii, “A general procedure for the construction of regularizing algorithms for a linear ill-posed equation in a Hilbert space,”Zh. Vychisl. Mat. Mat. Fiz.,7, No. 3, 672–677 (1967).
Additional information
Institute of Mathematics, Ukrainian Academy of Sciences, Kiev. Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 51, No. 10, pp. 1398–1410, October, 1999.
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Solodkii, S.G. Optimization of projection schemes of digitization of ill-posed problems. Ukr Math J 51, 1578–1591 (1999). https://doi.org/10.1007/BF02981690
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DOI: https://doi.org/10.1007/BF02981690