Boundedness in a parabolic-elliptic chemotaxis-growth system under a critical parameter condition
Boundedness in a parabolic-elliptic chemotaxis-growth system under a critical parameter condition
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DOI:
10.1016/j.aml.2016.08.003
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发表时间:
2017-02
期刊:
影响因子:
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通讯作者:
Bingran Hu;Youshan Tao
中科院分区:
文献类型:
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作者:
Bingran Hu;Youshan Tao
We consider the parabolic–elliptic chemotaxis-growth system {u t= Δ u− χ∇⋅(u m∇ v)+ μ u (1− u α), x∈ Ω, t> 0,− Δ v+ v= u γ, x∈ Ω, t> 0, under no-flux boundary conditions in a smoothly bounded domain Ω⊂ R N, N≥ 1, where χ, μ, m, α and γ are prescribed positive parameters fulfilling m≥ 1 and γ≥ 1. Recently, it has been proved in Galakhov et al.(2016) that if either α> m+ γ− 1 or α= m+ γ− 1 and μ> N α− 2 2 (m− 1)+ N α χ, for any given u 0∈ W 1,∞(Ω) this system possesses a global and bounded classical solution. The present work further shows that the same conclusion still holds for the critical case α= m+ γ− 1 and μ= N α− 2 2 (m− 1)+ N α χ.