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JOURNALS // Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika // Archive

Izv. Vyssh. Uchebn. Zaved. Mat., 2025 Number 1, Pages 37–51 (Mi ivm10053)

Cauchy problem for the biharmonic equation in an unbounded region

F. R. Tursunov, D. S. Shodiyev

Samarkand State University named after Sharof Rashidov, 15 University boulevard str., Samarkand, 140104 Republic of Uzbekistan

Abstract: The article studies the continuation of the solution of the Cauchy problem for the biharmonic equation in the domain $G$ from its known values on the smooth part $ S $ of the boundary $\partial G$ . The considered problem belongs to the problems of mathematical physics, in which there is no continuous dependence of solutions on the initial data. It is assumed that the solution to the problem exists and is continuously differentiable in a closed domain with exactly given Cauchy data. For this case, an explicit formula for the continuation of the solution is established.

Keywords: Cauchy problem, ill-posed problem, Carleman function, regularized solution, regularization, continuation formula.

UDC: 517.946

Received: 28.01.2024
Revised: 17.04.2024
Accepted: 26.06.2024

DOI: 10.26907/0021-3446-2025-1-37-51



© Steklov Math. Inst. of RAS, 2025