Electron. J. Differential Equations, Vol. 2021 (2021), No. 95, pp. 1-23.

Well-posedness and energy decay of a transmission problem of Kirchhoff type wave equations with damping and delay terms

Zhiqing Liu, Cunchen Gao, Zhong Bo Fang

Abstract:
We consider a transmission problem of Kirchhoff type wave equations with delay and damping terms, subject to a memory condition on one part of the boundary. Under appropriate hypotheses on the relaxation function and the relationship between weights of damping and delay terms, we establish well-posedness of the problem. Using the Faedo-Galerkin approximation technique, and introducing suitable energy and Lyapunov functionals, we obtain estimates for exponential, polynomial, and logarithmic decay.

Submitted April 5, 2021. Published December 2, 2021.
Math Subject Classifications: 35B40, 35L51.
Key Words: Transmission problem; Kirchhoff type wave equations; damping; delay term; well-posed; decay estimate.

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Zhiqing Liu
School of Mathematics and Physics
Qingdao University of Science and Technology
Qingdao 266061, China
email: Lzhiqing1005@163.com
Cunchen Gao
School of Mathematical Sciences
Ocean University of China
Qingdao 266100, China
email: ccgao123@126.com
Zhong Bo Fang
School of Mathematical Sciences
Ocean University of China
Qingdao 266100, China
email: fangzb7777@hotmail.com

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