On the Unique Solvability of a Three-Point Problem for Partial Differential Equation in a Two-Dimensional Domain

Autor: Zinovii Nytrebych, Volodymyr Il'kiv, I. I. Volyans’ka, P. I. Kalenyuk
Rok vydání: 2020
Předmět:
Zdroj: Journal of Mathematical Sciences. 246:170-187
ISSN: 1573-8795
1072-3374
DOI: 10.1007/s10958-020-04728-x
Popis: We study the problem with three-point conditions with respect to the time for a homogeneous partial differential equation in a plane domain. It is shown that the problem is well-posed in Hadamard's sense. This distinguishes the analyzed problem from the conditionally well-posed problem with many spatial variables whose solvability is connected with the problem of small denominators. The uniqueness theorem is proved and the conditions of existence of the solution of the problem with values in the spaces of periodic functions with exponential variation of the Fourier coefficients are established.
Databáze: OpenAIRE