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JOURNALS // Sibirskii Matematicheskii Zhurnal // Archive

Sibirsk. Mat. Zh., 2023 Volume 64, Number 5, Pages 895–911 (Mi smj7804)

On well-posedness of the Cauchy problem for pseudohyperbolic equations in weighted Sobolev spaces

L. N. Bondar'ab, G. V. Demidenkoab

a Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
b Novosibirsk State University

Abstract: We consider a class of strictly pseudohyperbolic equations and establish some solvability conditions of the Cauchy problem in the class of weighted Sobolev spaces. We also prove the uniqueness of solutions and obtain some estimates.

Keywords: equations that are not solved with respect to the higher-order derivative, pseudohyperbolic equations, energy estimate.

UDC: 517.955

MSC: 35R30

Received: 04.05.2023
Revised: 04.05.2023
Accepted: 16.05.2023

DOI: 10.33048/smzh.2023.64.502



© Steklov Math. Inst. of RAS, 2024