Blow-up phenomena in chemotaxis systems with a source term

被引:25
作者
Marras, Monica [1 ]
Vernier-Piro, Stella [2 ]
Viglialoro, Giuseppe [1 ]
机构
[1] Dipartimento Matemat & Informat, Vle Merello 92, I-09123 Cagliari, Italy
[2] Dipartimento Matemat & Informat, Via Osped 72, I-09124 Cagliari, Italy
关键词
blow-up time; nonlinear parabolic systems; lower bounds; chemotaxis; nonlinear cross-diffusion; KELLER-SEGEL SYSTEM; FINITE-TIME BLOWUP; BOUNDEDNESS; MODEL;
D O I
10.1002/mma.3728
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
This paper dealswith a parabolic-parabolic Keller-Segel-type systemin a bounded domain of R-N, {N = 2; 3}, under different boundary conditions, with time-dependent coefficients and a positive source term. The solutions may blowup in finite time t *: and under appropriate assumptions on data, explicit lower bounds for blow-up time are obtained when blow up occurs. Copyright (C) 2015 JohnWiley & Sons, Ltd.
引用
收藏
页码:2787 / 2798
页数:12
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