Global boundedness of a diffusive prey-predator model with indirect prey-taxis and predator-taxis

Global boundedness of a diffusive prey-predator model with indirect prey-taxis and predator-taxis
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具有间接猎物趋向性和捕食性趋向性的扩散猎物-捕食者模型的全局有界性

DOI:
10.1016/j.jmaa.2021.125820
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发表时间:
2021-11
期刊:
J. Math. Anal. Appl.
影响因子:
--
通讯作者:
Sainan Wu
Sainan Wu
中科院分区:
其他
文献类型:
--
作者:
Sainan Wu

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本文考虑一类具有捕食者-食饵间接趋性和捕食者-食饵趋性的一般反应扩散捕食-食饵模型{ut = d Δ u− χ(u m)+ c(u,v)− g(u),x∈ Ω,t> 0,vt = Δ v+ β(v w)+ f(v)−(u,v),x∈ Ω,t> 0,τ w t= Δ w+ β u− γ w,x∈ Ω,t> 0,τ mt = Δ m+ δ v− ρ m,x∈ Ω,t> 0,在光滑有界区域Ω∈ Rn上的齐次Neumann边界条件下.这里参数d,χ,ε,c,β,γ,δ,ρ是正的,τ∈{0,1},函数f(v),g(u),ε(u,v)满足一些一般的假设.对于τ= 1的系统,在空间维数n≤ 3的假设下,在适当的参数条件下,系统存在时间上整体有界的经典解.此外,对于τ= 0的系统,在任意空间维数n的假设下,在适当的参数条件下,也得到了整体有界解.
This paper considers a general reaction-diffusion predator-prey model with indirect prey-taxis and predator-taxis {u t= d Δ u− χ∇⋅(u∇ m)+ c ϕ (u, v)− g (u), x∈ Ω, t> 0, v t= Δ v+ ξ∇⋅(v∇ w)+ f (v)− ϕ (u, v), x∈ Ω, t> 0, τ w t= Δ w+ β u− γ w, x∈ Ω, t> 0, τ m t= Δ m+ δ v− ρ m, x∈ Ω, t> 0, under homogeneous Neumann boundary condition in a smooth bounded domain Ω∈ R n. Here the parameters d, χ, ξ, c, β, γ, δ, ρ are positive, τ∈{0, 1}, and the functions f (v), g (u), ϕ (u, v) satisfy some general assumptions. For the system with τ= 1, under the assumption on the spatial dimension n≤ 3 and appropriate conditions on the parameters, the system possesses a classical solution which is global in time and bounded. Furthermore, for the system with τ= 0, under the assumption on the arbitrary spatial dimension n and appropriate conditions on the parameters, the globally bounded solution is also obtained.
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