Work

Large time behavior for the nonlinear dissipative Boussinesq equation

Year: 2025

Type: article

Abstract: In this paper, we study the nonlinear dissipative Boussinesq equation in the whole space with integrable data. As our preparations, the optimal estimates as well as the optimal leading terms for the linearized model are derived by performing the Wentzel–Kramers–Brillouin (WKB) analysis and the Fourier analysis. Then, under some conditions on the power of nonlinearity, we demonstrate global (in time) existence of small data Sobolev solutions with different regularities to the nonlinear model by applying some fractional‐order interpolations, where the optimal growth () and decay () estimates of solutions for large time are given. Simultaneously, we get a new large time asymptotic profile of global (in time) solutions. These results imply some influence of dispersion and dissipation on qualitative properties of solution.

Source: Mathematische Nachrichten

DOI: 10.1002/mana.70015

Authors: Wenhui Chen, Hiroshi Takeda

Institutions: Guangzhou University, Fukuoka University

Language: English

Topic: Advanced Mathematical Physics Problems

Subfield: Mathematical Physics

Field: Mathematics

Domain: Physical Sciences

Open Access status: green

Funders: National Natural Science Foundation of China, Japan Society for the Promotion of Science, Basic and Applied Basic Research Foundation of Guangdong Province

Awards: Asymptotic behavior of solutions to hyperbolic and dispersive equations with damping terms, G2469264322, G4486576615, G5445724576, G7952596114