Abstract
For discrete operator generated by singular kernel of Calderon–Zygmund one introduces a finite dimensional approximation which is a cyclic convolution. Using properties of a discrete Fourier transform and a finite discrete Fourier transform we prove a solvability for approximating equation in corresponding discrete space. For comparison discrete and finite discrete solution we obtain an estimate for a speed of convergence for a certain right-hand side of considered equation.
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Acknowledgments
The work was supported by Russian Foundation for Basic Research and Lipetsk regional government of Russia, project No. 14-41-03595-r-center-a.
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Vasilyev, A., Vasilyev, V. (2017). Discrete Approximations for Multidimensional Singular Integral Operators . In: Dimov, I., Faragó, I., Vulkov, L. (eds) Numerical Analysis and Its Applications. NAA 2016. Lecture Notes in Computer Science(), vol 10187. Springer, Cham. https://doi.org/10.1007/978-3-319-57099-0_81
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DOI: https://doi.org/10.1007/978-3-319-57099-0_81
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