RAS MathematicsЖурнал вычислительной математики и математической физики Computational Mathematics and Mathematical Physics

  • ISSN (Print) 0044-4669
  • ISSN (Online) 3034-533

FIRST BOUNDARY VALUE PROBLEM FOR THE HEAT CONDUCTION EQUATION IN TIME-DEGENERATE DOMAINS

PII
S3034533S0044466925040053-1
DOI
10.7868/S303453325040053
Publication type
Article
Status
Published
Authors
Volume/ Edition
Volume 65 / Issue number 4
Pages
460-470
Abstract
We consider the first boundary value problem in a cone with a degeneracy of the domain at the initial moment of time for the heat equation. Own functions for the problem were found. Estimations of the Green’s function are obtained. For the problem with a zero boundary function, we establish unambiguous solvability in a certain class of functions that admits a definite growth when approaching the vertex of a cone. Similar results are obtained for the cone that degenerates at the final point in time. In addition, we consider the first boundary value problem in domains that are degenerate only in terms of variables.
Keywords
уравнение теплопроводности первая краевая задача в конусе функция Грина первая краевая задача в вырождающихся по времени областях собственные функции первой краевой задачи
Date of publication
01.04.2025
Year of publication
2025
Number of purchasers
0
Views
84

References

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