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Izvestiya: Mathematics, 2005, Volume 69, Issue 2, Pages 265–329
DOI: https://doi.org/10.1070/IM2005v069n02ABEH000530
(Mi im634)
 

This article is cited in 25 scientific papers (total in 25 papers)

On the eigenvalues of a “dumb-bell with a thin handle”

R. R. Gadyl'shin

Bashkir State Pedagogical University
References:
Abstract: We consider the Neumann boundary-value problem of finding the small-parameter asymptotics of the eigenvalues and eigenfunctions for the Laplace operator in a singularly perturbed domain consisting of two bounded domains joined by a thin “handle”. The small parameter is the diameter of the cross-section of the handle. We show that as the small parameter tends to zero these eigenvalues converge either to the eigenvalues corresponding to the domains joined or to the eigenvalues of the Dirichlet problem for the Sturm–Liouville operator on the segment to which the thin handle contracts. The main results of this paper are the complete power small-parameter asymptotics of the eigenvalues and the corresponding eigenfunctions and explicit formulae for the first terms of the asymptotics. We consider critical cases generated by the choice of the place where the thin “handle” is joined to the domains, as well as by the multiplicity of the eigenvalues corresponding to the domains joined.
Received: 04.12.2003
Bibliographic databases:
UDC: 517.956
Language: English
Original paper language: Russian
Citation: R. R. Gadyl'shin, “On the eigenvalues of a “dumb-bell with a thin handle””, Izv. Math., 69:2 (2005), 265–329
Citation in format AMSBIB
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\by R.~R.~Gadyl'shin
\paper On the eigenvalues of a ``dumb-bell with a thin handle''
\jour Izv. Math.
\yr 2005
\vol 69
\issue 2
\pages 265--329
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Linking options:
  • https://www.mathnet.ru/eng/im634
  • https://doi.org/10.1070/IM2005v069n02ABEH000530
  • https://www.mathnet.ru/eng/im/v69/i2/p45
  • This publication is cited in the following 25 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Известия Российской академии наук. Серия математическая Izvestiya: Mathematics
    Statistics & downloads:
    Abstract page:702
    Russian version PDF:278
    English version PDF:31
    References:82
    First page:1
     
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