The carrying capacity to chemotaxis system with two species and competitive kinetics in N dimensions
The carrying capacity to chemotaxis system with two species and competitive kinetics in N dimensions
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DOI:
10.1007/s00033-020-01363-z
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发表时间:
2020-07
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影响因子:
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通讯作者:
Guangyu Xu
中科院分区:
文献类型:
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作者:
Guangyu Xu
This paper deals with the solution of two-species chemotaxis system 0.1 {u_t= d_1 Δ u-χ _1 ∇ ⋅ (u ∇ w)+ μ _ 1 u (1-u-a_ 1 v), &\quad x ∈ Ω,\quad t> 0,\v_t= d_2 Δ v-χ _2 ∇ ⋅ (v ∇ w)+ μ _ 2 v (1-a_ 2 uv), &\quad x ∈ Ω,\quad t> 0,\0= d_3 Δ w-γ w+ α u+ β v&\quad x ∈ Ω,\quad t> 0. ut= d 1 Δ u-χ 1∇·(u∇ w)+ μ 1 u (1-u-a 1 v), x∈ Ω, t> 0, vt= d 2 Δ v-χ 2∇·(v∇ w)+ μ 2 v (1-a 2 u-v), x∈ Ω, t> 0, 0= d 3 Δ w-γ w+ α u+ β vx∈ Ω, t> 0 in a smooth bounded domain Ω ⊂ R^ N, N ≥ 1 Ω⊂ RN, N≥ 1. When d_1= d_2= 0 d 1= d 2= 0, we first establish the local well-posedness of corresponding hyperbolic–hyperbolic–elliptic problem with the help of some compactness arguments and then obtain a blowup in finite time result for this problem. Using this blow-up conclusion, we further consider model (0.1) with small d_1, d_2> 0 d 1, d 2> 0, and we then get that for any given M> 0 M> 0 and T> 0 T> 0, one can find suitable large, radially symmetric initial data and some appropriate parameters such that the corresponding classical solution of (0.1) satisfies u (x, t)+ v (x, t)> M, u (x, t)+ v (x, t)> M, with some x ∈ Ω x∈ Ω and t ∈ (0, T) t∈(0, T).