TY - JOUR T1 - Asymptotic Behavior of Solution to Some Models Involving Two Species All with Chemotaxis JO - Journal of Partial Differential Equations VL - 3 SP - 266 EP - 281 PY - 2009 DA - 2009/08 SN - 22 DO - http://doi.org/10.4208/jpde.v22.n3.5 UR - https://global-sci.org/intro/article_detail/jpde/5257.html KW - Chemotaxis model KW - asymptotical behavior of solution KW - blow-up KW - quenching KW - comparison AB -

This paper is concerned with the asymptotic behavior of solution to the following model involving two species all with chemotaxis: \frac{∂p}{∂t}=D_p∇(p∇ln\frac{p}{ω}), \frac{∂q}{∂t}=D_q∇(q∇ln\frac{q}{ω}), \frac{∂ω}{∂t}=βp-δω, p∇ln(\frac{p}{ω}·\vec{n}=q∇ln\frac{q}{ω})·\vec{n}=0. We prove that the solution exists globally as β ≥ 0. As β < 0, whether the solution exists globally or not depends on the initial data. By function transformation and comparison, the asymptotical behavior of the solution is studied.