Optimal Time Decay Rates for a Chemotaxis Model with Logarithmic Sensitivity
Optimal Time Decay Rates for a Chemotaxis Model with Logarithmic Sensitivity
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DOI:
10.1007/978-3-030-63591-6_42
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发表时间:
2021
期刊:
影响因子:
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通讯作者:
Yanni Zeng;Kun Zhao
中科院分区:
文献类型:
--
作者:
Yanni Zeng;Kun Zhao
We consider a Keller-Segel type chemotaxis model with logarithmic sensitivity and density-dependent production/consumption rate. It is areaction-diffusion system describing the interaction of cells and a chemical signal. We study Cauchy problem for the original system and its transformed system, which is one of hyperbolic-parabolic conservation laws. In both cases of diffusive and non-diffusive chemical, we obtain optimaltime decay rates for the solution. Our results improve those in Li et al. (Nonlinearity 28:2181-2210, 2015 ), Martinez et al. (Indiana Univ Math J 67:1383-1424, 2018 ).