Ural Mathematical Journal
 RUS  ENG JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PACKAGE AMSBIB
 General information Latest issue Archive Search papers Search references RSS Latest issue Current issues Archive issues What is RSS

 Ural Math. J.: Year: Volume: Issue: Page: Find

 Ural Math. J., 2019, Volume 5, Issue 1, Pages 91–100 (Mi umj77)

Harmonic interpolating wavelets in Neumann boundary value problem in a circle

Dmitry A. Yamkovoi

Krasovskii Institute of Mathematics and Mechanics, Ural Branch of the Russian Academy of Sciences, 16 S. Kovalevskaya str., Ekaterinburg, Russia, 620990

Abstract: The Neumann boundary value problem (BVP) in a unit circle is discussed. For the solution of the Neumann BVP, we built a method employing series representation of given $2 \pi$-periodic continuous boundary function by interpolating wavelets consisting of trigonometric polynomials. It is convenient to use the method due to the fact that such series is easy to extend to harmonic polynomials inside a circle. Moreover, coefficients of the series have an easy-to-calculate form. The representation by the interpolating wavelets is constructed by using an interpolation projection to subspaces of a multiresolution analysis with basis $2 \pi$-periodic scaling functions (more exactly, their binary rational compressions and shifts). That functions were developed by Subbotin and Chernykh on the basis of Meyer-type wavelets. We will use three kinds of such functions, where two out of the three generates systems, which are orthogonal and simultaneous interpolating on uniform grids of the corresponding scale and the last one generates only interpolating on the same uniform grids system. As a result, using the interpolation property of wavelets mentioned above, we obtain the exact representation of the solution for the Neumann BVP by series of that wavelets and numerical bound of the approximation of solution by partial sum of such series.

Keywords: wavelets, interpolating wavelets, harmonic functions, Neumann boundary value problem.

 Funding Agency Grant Number Russian Science Foundation 14-11-00702 This work was supported by Russian Science Foundation (project no. 14-11-00702).

DOI: https://doi.org/10.15826/umj.2019.1.009

Full text: PDF file (168 kB)
References: PDF file   HTML file

Bibliographic databases:

Language:

Citation: Dmitry A. Yamkovoi, “Harmonic interpolating wavelets in Neumann boundary value problem in a circle”, Ural Math. J., 5:1 (2019), 91–100

Citation in format AMSBIB
\Bibitem{Yam19} \by Dmitry~A.~Yamkovoi \paper Harmonic interpolating wavelets in Neumann boundary value problem in a circle \jour Ural Math. J. \yr 2019 \vol 5 \issue 1 \pages 91--100 \mathnet{http://mi.mathnet.ru/umj77} \crossref{https://doi.org/10.15826/umj.2019.1.009} \mathscinet{http://www.ams.org/mathscinet-getitem?mr=MR3995658} \zmath{https://zbmath.org/?q=an:1448.35096} \elib{https://elibrary.ru/item.asp?id=38948063} \scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85071456464} 

• http://mi.mathnet.ru/eng/umj77
• http://mi.mathnet.ru/eng/umj/v5/i1/p91

 SHARE:

Citing articles on Google Scholar: Russian citations, English citations
Related articles on Google Scholar: Russian articles, English articles