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Global boundedness and large time behaviour in a higher-dimensional quasilinear chemotaxis system with consumption of chemoattractant
Published online by Cambridge University Press: 30 April 2024
Abstract
This paper deals with the following quasilinear chemotaxis system with consumption of chemoattractant with smooth boundary $\partial \Omega$
. It is shown that if $m>\max \{1,\,\frac {3N-2}{2N+2}\}$
, for any reasonably smooth nonnegative initial data, the corresponding no-flux type initial-boundary value problem possesses a globally bounded weak solution. Furthermore, we prove that the solution converges to the spatially homogeneous equilibrium $(\bar {u}_0,\,0)$
in an appropriate sense as $t\rightarrow \infty$
, where $\bar {u}_0=\frac {1}{|\Omega |}\int _\Omega u_0$
. This result not only partly extends the previous global boundedness result in Fan and Jin (J. Math. Phys. 58 (2017), 011503) and Wang and Xiang (Z. Angew. Math. Phys. 66 (2015), 3159–3179) to $m>\frac {3N-2}{2N}$
in the case $N\geq 3$
, but also partly improves the global existence result in Zheng and Wang (Discrete Contin. Dyn. Syst. Ser. B 22 (2017), 669–686) to $m>\frac {3N}{2N+2}$
when $N\geq 2$
.
- Type
- Research Article
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- Copyright
- Copyright © The Author(s), 2024. Published by Cambridge University Press on behalf of The Royal Society of Edinburgh
References
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