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JOURNALS // Vladikavkazskii Matematicheskii Zhurnal // Archive

Vladikavkaz. Mat. Zh., 2012 Volume 14, Number 4, Pages 63–72 (Mi vmj438)

This article is cited in 6 papers

On optimal recovery of the Laplacian of a function from its inaccurately given Fourier transform

E. O. Sivkova

Moscow State Institute of Radio-Engineering, Electronics and Automation (Technical University), Russia, Moscow

Abstract: The paper is devoted to the problem of the optimal recovery for a fractional power of the Laplacian of a function from its inaccurately given Fourier transform in metric $L_\infty$ on some convex subset of $\mathbb R^d$. The optimal recovery method is constructed. This method is not used the information about the Fourier transform outside some ball centred at the origin.

Key words: optimal recovery, Laplacian, Fourier transform, convex problem.

UDC: 517.518.8

Received: 28.05.2012



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