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JOURNALS // Matematicheskoe modelirovanie // Archive

Mat. Model., 1992 Volume 4, Number 4, Pages 89–100 (Mi mm2069)

This article is cited in 1 paper

Computational methods and algorithms

Some regularizing algorithms for the solution of integral equations of the first kind with a priori restrictions

V. P. Zagonov, S. V. Podolyako

M. V. Keldysh Institute for Applied Mathematics, Russian Academy of Sciences

Abstract: An approach to the construction of regularizing algorithms is considered in the problem of finding a stable approximate solution of the operator equation $Au=f$, where $A$ is a continuous operator from $C[a,b]$ to a normed linear space $F$, when there are a priori restrictions on the exact solution $u(x)$. The method is numerically implemented for the solution of Volterra integral equations and Fredholm integral equations of the first kind, when there is a priori information of various types. The algorithm is realized in the form of a program for IBM PC AT. In the finite-dimensional approximation the irregular grids for the right-hand side, the kernel and the desired solution of the equation are used. Such grids are useful in application of the algorithm to specific practical problems.

UDC: 517.988.8+517.968

Received: 13.02.1991



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