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Sbornik: Mathematics, 1999, Volume 190, Issue 7, Pages 973–1004
DOI: https://doi.org/10.1070/sm1999v190n07ABEH000416
(Mi sm416)
 

This article is cited in 3 scientific papers (total in 3 papers)

Existence of boundary values for solutions of degenerate elliptic equations

I. M. Petrushko

Moscow Power Engineering Institute (Technical University)
References:
Abstract: The behaviour near the boundary of the solution of a second-order elliptic equation degenerate at some part of the boundary is discussed. The case is considered when the quadratic form corresponding to the principal part of the differential operator vanishes at the (unit) normal vector to the boundary and the setting of the first boundary-value problem (problem D or problem E) depends on the values of the coefficients of the first derivatives (Keldysh-type degeneracy). Conditions on the solution of the equation necessary and sufficient for the existence of its limit on the part of the boundary on which one sets boundary values in the first boundary-value problem are found. A solution satisfying these conditions proves to have limit also at the remaining part of the boundary. In addition, a closely related problem on the unique solubility of the corresponding boundary-value problem with boundary functions in $L_p$ is studied.
Received: 05.10.1998
Bibliographic databases:
UDC: 517.956
MSC: Primary 35J67, 35J70; Secondary 35J25
Language: English
Original paper language: Russian
Citation: I. M. Petrushko, “Existence of boundary values for solutions of degenerate elliptic equations”, Sb. Math., 190:7 (1999), 973–1004
Citation in format AMSBIB
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\by I.~M.~Petrushko
\paper Existence of boundary values for solutions of degenerate elliptic equations
\jour Sb. Math.
\yr 1999
\vol 190
\issue 7
\pages 973--1004
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\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-0033240354}
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  • https://doi.org/10.1070/sm1999v190n07ABEH000416
  • https://www.mathnet.ru/eng/sm/v190/i7/p41
  • This publication is cited in the following 3 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Математический сборник - 1992–2005 Sbornik: Mathematics
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    Abstract page:701
    Russian version PDF:204
    English version PDF:12
    References:92
    First page:1
     
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