Vladikavkazskii Matematicheskii Zhurnal
RUS  ENG    JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PACKAGE AMSBIB  
General information
Latest issue
Archive
Impact factor

Search papers
Search references

RSS
Latest issue
Current issues
Archive issues
What is RSS



Vladikavkaz. Mat. Zh.:
Year:
Volume:
Issue:
Page:
Find






Personal entry:
Login:
Password:
Save password
Enter
Forgotten password?
Register


Vladikavkazskii Matematicheskii Zhurnal, 2020, Volume 22, Number 1, Pages 85–92
DOI: https://doi.org/10.23671/VNC.2020.1.57607
(Mi vmj717)
 

This article is cited in 1 scientific paper (total in 1 paper)

On numerical solution of hypersingular integral equations of the first kind

Sh. S. Khubezhtyab

a North Ossetian State University, 44–46 Vatutin St., Vladikavkaz 362025, Russia
b Southern Mathematical Institute VSC RAS, 22 Marcus St., Vladikavkaz 362027, Russia
Full-text PDF (225 kB) Citations (1)
References:
Abstract: We consider a quadrature method for the numerical solution of hypersingular integral equations on the class of functions that are unbounded at the ends of the integration interval. For a hypersingular integral with a weight function $ p (x) = 1/\sqrt{1-x^2} $, a quadrature formula of the interpolation type is constructed using the zeros of the Chebyshev orthogonal polynomial of the first kind. For a regular integral, the quadrature formula of the highest degree of accuracy is also used with the weight function $ p (x)$. After discretizing the hypersingular integral equation, the singularity parameter is given the values of the roots of the Chebyshev polynomial and, evaluating indeterminate forms when the values of the nodes coincide, a system of linear algebraic equations is obtained. But, as it turned out, the resulting system is incorrect, that is, it does not have a unique solution, there is no convergence. Due to certain additional conditions, the system turns out to be correct. This is proved on numerous test cases, in which the errors of computations are also sufficiently small. On the basis of the considered test problems, we conclude that the constructed computing scheme is convenient for implementation and effective for solving hypersingular integral equations on the class of functions of the integration interval unbound at the ends.
Key words: hypersingular integral, quadrature formula, computational scheme, error estimate.
Received: 30.11.2018
Document Type: Article
UDC: 517.392
MSC: 65R20, 45E05
Language: Russian
Citation: Sh. S. Khubezhty, “On numerical solution of hypersingular integral equations of the first kind”, Vladikavkaz. Mat. Zh., 22:1 (2020), 85–92
Citation in format AMSBIB
\Bibitem{Khu20}
\by Sh.~S.~Khubezhty
\paper On numerical solution of hypersingular integral equations of the first kind
\jour Vladikavkaz. Mat. Zh.
\yr 2020
\vol 22
\issue 1
\pages 85--92
\mathnet{http://mi.mathnet.ru/vmj717}
\crossref{https://doi.org/10.23671/VNC.2020.1.57607}
Linking options:
  • https://www.mathnet.ru/eng/vmj717
  • https://www.mathnet.ru/eng/vmj/v22/i1/p85
  • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Владикавказский математический журнал
    Statistics & downloads:
    Abstract page:240
    Full-text PDF :72
    References:38
     
      Contact us:
     Terms of Use  Registration to the website  Logotypes © Steklov Mathematical Institute RAS, 2024