Abstract
We find a family of optimal methods for recovering the solution to the Dirichlet problem in the upper half-plane on a line parallel to the \( x \)-axis from an approximate measurement of this solution on another line under the condition that the boundary function lies in a certain Sobolev space.
Similar content being viewed by others
References
Stein E. and Weiss G., Introduction to Harmonic Analysis on Euclidean Spaces, Princeton University, Princeton (1970).
Magaril-Ilyaev G.G. and Tikhomirov V.M., Convex Analysis: Theory and Applications, Amer. Math. Soc., Providence (2003).
Smolyak S.A., On Optimal Recovery of Functions and Functionals over Them. Extended Abstract of Cand. Sci. Dissertation, Moscow Univ., Moscow (1965) [Russian].
Micchelli C.A. and Rivlin T.J., “A survey of optimal recovery,” in: Optimal Estimation in Approximation Theory, Plenum, New York (1977), 1–54.
Melkman A.A. and Micchelli C.A., “Optimal estimation of linear operators in Hilbert spaces from inaccurate data,” SIAM J. Numer. Anal., vol. 16, no. 1, 87–105 (1979).
Micchelli C.A. and Rivlin T.J., “Lectures on optimal recovery,” in: Numerical Analysis. Lancaster 1984, vol. 1129, Springer, Berlin (1985), 21–93 (Lect. Notes Math.; vol. 1129).
Traub J.F. and Woźniakowski H., A General Theory of Optimal Algorithms, Academic, New York (1980).
Magaril-Ilyaev G.G. and Osipenko K.Yu., “Optimal recovery of functions and their derivatives from inaccurate information about the spectrum and inequalities for derivatives,” Funct. Anal. Appl., vol. 37, no. 3, 203–214 (2003).
Magaril-Ilyaev G.G. and Osipenko K.Yu., “On optimal harmonic synthesis from inaccurate spectral data,” Funct. Anal. Appl., vol. 44, no. 3, 223–225 (2010).
Magaril-Il’yaev G.G., Osipenko K.Yu., and Tikhomirov V.M., “On optimal recovery of heat equation solutions,” in: Approximation Theory: A Volume Dedicated to B. Bojanov, Marin Drinov, Sofia (2004), 163–175.
Osipenko K.Yu., “On the reconstruction of the solution of the Dirichlet problem from inexact initial data,” Vladikavkaz. Mat. Zh., vol. 6, no. 4, 55–62 (2004).
Balova E.A., “Optimal reconstruction of the solution of the Dirichlet problem from inaccurate input data,” Math. Notes, vol. 82, no. 3, 285–294 (2007).
Magaril-Ilyaev G.G. and Osipenko K.Yu., “Optimal recovery of the solution of the heat equation from inaccurate data,” Sb. Math., vol. 200, no. 5, 665–682 (2009).
Abramova E.V., “The best recovery of the solution of the Dirichlet problem from inaccurate spectrum of the boundary function,” Vladikavkaz. Mat. Zh., vol. 19, no. 4, 3–12 (2017).
Balova E.A. and Osipenko K.Yu., “Optimal recovery methods for solutions of the Dirichlet problem that are exact on subspaces of spherical harmonics,” Math. Notes, vol. 104, no. 6, 781–788 (2018).
Magaril-Il’yaev G.G. and Sivkova E.O., “Optimal recovery of the semi-group operators from inaccurate data,” Euras. Math. J., vol. 10, no. 4, 75–84 (2019).
Abramova E.V., Magaril-Il’yaev G.G. and Sivkova E.O., “Best recovery of the solution of the Dirichlet problem in a half-space from inaccurate data,” Comp. Math. Math. Phys., vol. 60, no. 10, 1656–1665 (2020).
Acknowledgment
The authors are grateful to G.G. Magaril-Il’yaev for useful discussions.
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Sibirskii Matematicheskii Zhurnal, 2023, Vol. 64, No. 3, pp. 441–449. https://doi.org/10.33048/smzh.2023.64.301
Rights and permissions
About this article
Cite this article
Abramova, E.V., Sivkova, E.O. Optimal Recovery of the Solution to the Dirichlet Problem in the Half-Plane. Sib Math J 64, 507–513 (2023). https://doi.org/10.1134/S0037446623030011
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0037446623030011