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Quarterly of Applied Mathematics

Quarterly of Applied Mathematics

Online ISSN 1552-4485; Print ISSN 0033-569X

   
 
 

 

Asymptotic stability of exogenous chemotaxis systems with physical boundary conditions


Authors: Guangyi Hong and Zhi-an Wang
Journal: Quart. Appl. Math. 79 (2021), 717-743
MSC (2020): Primary 35K51, 35B40, 35Q92, 92C17
DOI: https://doi.org/10.1090/qam/1599
Published electronically: June 29, 2021
MathSciNet review: 4328145
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Abstract: In this paper, we consider the exogenous chemotaxis system with physical mixed zero-flux and Dirichlet boundary conditions in one dimension. Since the Dirichlet boundary condition can not contribute necessary estimates for the cross-diffusion structure in the system, the global-in-time existence and asymptotic behavior of solutions remain open up to date. In this paper, we overcome this difficulty by employing the technique of taking anti-derivative so that the Dirichlet boundary condition can be fully used, and show that the system admits global strong solutions which exponentially stabilize to the unique stationary solution as time tends to infinity against some suitable small perturbations. To the best of our knowledge, this is the first result obtained on the global well-posedness and asymptotic behavior of solutions to the exogenous chemotaxis system with physical boundary conditions.


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Additional Information

Guangyi Hong
Affiliation: Department of Applied Mathematics, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, People’s Republic of China—and—School of Mathematics, South China University of Technology, Guangzhou, 510641, China
MR Author ID: 1084645
Email: gyhmath05@outlook.com

Zhi-an Wang
Affiliation: Department of Applied Mathematics, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, People’s Republic of China
MR Author ID: 686941
Email: mawza@polyu.edu.hk

Keywords: Exogenous chemotaxis, steady state, asymptotic behavior, anti-derivative, energy method
Received by editor(s): February 1, 2021
Received by editor(s) in revised form: May 5, 2021
Published electronically: June 29, 2021
Additional Notes: The first author was partially supported by the CAS AMSS-POLYU Joint Laboratory of Applied Mathematics postdoctoral fellowship scheme. The second author was supported in part by the Hong Kong Research Grant Council General Research Fund No. PolyU 153031/17P (Q62H) and internal grant No. ZZHY from HKPU. The second author is the corresponding author.
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