Singular solutions of a two-phase problem  for the parabolic equations with a time derivative in the conjugation conditionsunder the  incompatibility of the initial and boundary data

Authors

  • Galina I. Bizhanova Institute of Mathematocs & Mathematical Modeling, Almaty, Kazakhstan Author https://orcid.org/0009-0009-8990-8405
  • Shattyk N. Nurmukhanbet Institute of Mathematics & Mathematical Modeling Author

DOI:

https://doi.org/10.70474/zx6f0m21

Keywords:

Parabolic equation, two-phase problem, conjugation condition, incompatibility of initial and boundary data, singular solution, regular solution

Abstract

A two-phase problem for the heat equations with the time derivative in the conjugation conditions is studied under the incompatibility of the initial and boundary data. Singular solutions of the problem are constructed in explicit form. Such solutions appear due to the nonfulfillment of the compatibility conditions. We prove that the solution of the problem is the sum of a Hölder function and singular functions whose number is equal to the number of incompatibilities of the given functions at the boundary of the domain.

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References

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Kazakh Mathematical Journal, 23(2), 2023

Published

2025-09-08

How to Cite

Singular solutions of a two-phase problem  for the parabolic equations with a time derivative in the conjugation conditionsunder the  incompatibility of the initial and boundary data. (2025). Kazakh Mathematical Journal, 23(2), 23–53. https://doi.org/10.70474/zx6f0m21

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