In this paper, we consider the attraction‐repulsion parabolic‐parabolic‐parabolic model with nonlinear diffusion
{left left left leftarrayut=∇·(D(u)∇u)−∇·(uS1(x,u,v)∇v)+∇·(uS2(x,u,w)∇w)array+ξu−μu2,arrayx∈Ω,t>0,arrayvt=Δv+αu−βv,arrayx∈Ω,t>0,arraywt=Δw+γu−δw,arrayx∈Ω,t>0,
in a smooth bounded domain
normalΩ⊂ℝnfalse(n≥2false), where α, β, γ, δ, μ are given positive parameters and ξ ≥ 0. The function D satisfies D(u) ≥ CDum − 1 for all u > 0 with CD > 0.
Sifalse(i=1,2false) are given matrix‐valued functions in
ℝn×n which fulfill
false|S1false(x,u,vfalse)false|≤CS1false(1+ufalse)−α1,0.1em0.1em0.1emfalse|S2false(x,u,wfalse)false|≤CS2false(1+ufalse)−α2
with some
CSi>0 and
αi>0false(i=1,2false). It is shown that under the conditions m > 0 and
minfalse{m+2α1,m+2α2false}>2nn+2, the corresponding initial boundary value problem possesses at least one global bounded weak solution.