Explicit lower bound of blow-up time in a fully parabolic chemotaxis system with nonlinear cross-diffusion
Explicit lower bound of blow-up time in a fully parabolic chemotaxis system with nonlinear cross-diffusion
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具有非线性交叉扩散的全抛物线趋化系统中爆炸时间的显式下限
DOI:
10.1016/j.jmaa.2015.11.048
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发表时间:
2016-04
影响因子:
1.3
通讯作者:
Stella Vernier Piro
中科院分区:
文献类型:
--
作者:
Youshan Tao;Stella Vernier Piro
This paper detects the lower bounds of blow-up time of smooth solutions for the chemotaxis model {u t= Δ u− χ∇⋅(u (u+ 1) m− 1∇ v), x∈ B 1 (0), t> 0, v t= Δ v− v+ u, x∈ B 1 (0), t> 0, under homogeneous Neumann boundary conditions in a unit ball B 1 (0)⊂ R 3 centered at the origin, with positive constant χ and parameter m∈ R. Under the assumption that (u (x, 0), v (x, 0))=(u 0 (| x|), v 0 (| x|))∈ C 0 (B¯ 1 (0))× W 1,∞(B 1 (0)), it is shown that whenever m∈[2 3, 2], the blow-up time of a classical solution to the corresponding initial–boundary problem has an explicit lower bound measured in terms of χ,∫ B 1 (0) u 0 p and∫ B 1 (0)|∇ v 0| 2 q for appropriate p> 1 and q> 1. Here we underline that the global classical solution exists and is bounded if m< 2 3, which leads to the assumption m≥ 2 3 for addressing the properties of blow-up solutions. However, the question of lower bounds of blow-up time for the case m> 2 remains open due to technical reasons.
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影响因子:
1.1
作者:
L. Payne;P. Schaefer
通讯作者:
L. Payne;P. Schaefer
DOI:
10.1016/j.anihpc.2013.07.007
发表时间:
2014-07
影响因子:
1.9
作者:
N. Mizoguchi;P. Souplet
通讯作者:
N. Mizoguchi;P. Souplet
DOI:
10.1007/s00033-010-0071-6
发表时间:
2010-04
期刊:
Zeitschrift für angewandte Mathematik und Physik
影响因子:
--
作者:
L. Payne;G. Philippin;S. Piro
通讯作者:
L. Payne;G. Philippin;S. Piro
DOI:
10.1007/s00033-014-0400-2
发表时间:
2015-02
期刊:
Zeitschrift für angewandte Mathematik und Physik
影响因子:
--
作者:
G. Philippin
通讯作者:
G. Philippin
DOI:
10.1090/s0002-9947-1992-1046835-6
发表时间:
1992-02
影响因子:
1.3
作者:
Willi Jäger;S. Luckhaus
通讯作者:
Willi Jäger;S. Luckhaus