Spectral Regularization Methods for an Abstract Ill‐Posed Elliptic Problem

Nadjib Boussetila, Salim Hamida and Faouzia Rebbani

Abstract and Applied Analysis, 2013, vol. 2013, issue 1

Abstract: We study an abstract elliptic Cauchy problem associated with an unbounded self‐adjoint positive operator which has a continuous spectrum. It is well‐known that such a problem is severely ill‐posed; that is, the solution does not depend continuously on the Cauchy data. We propose two spectral regularization methods to construct an approximate stable solution to our original problem. Finally, some other convergence results including some explicit convergence rates are also established under a priori bound assumptions on the exact solution.

Date: 2013
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https://doi.org/10.1155/2013/947379

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Persistent link: https://EconPapers.repec.org/RePEc:wly:jnlaaa:v:2013:y:2013:i:1:n:947379

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