Continuous Dependence in Front Propagation for Convective Reaction-Diffusion Models with Aggregative Movements

被引:4
|
作者
Malaguti, Luisa [2 ]
Marcelli, Cristina [1 ]
Matucci, Serena [3 ]
机构
[1] Polytech Univ Marche, Dept Math Sci, I-60131 Ancona, Italy
[2] Univ Modena & Reggio Emilia, Dept Engn Sci & Methods, I-42122 Reggio Emilia, Italy
[3] Univ Florence, Dept Elect & Telecommun, I-50139 Florence, Italy
关键词
EQUATIONS; SPEED; TERMS;
D O I
10.1155/2011/986738
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The paper deals with a degenerate reaction-diffusion equation, including aggregative movements and convective terms. The model also incorporates a real parameter causing the change from a purely diffusive to a diffusive-aggregative and to a purely aggregative regime. Existence and qualitative properties of traveling wave solutions are investigated, and estimates of their threshold speeds are furnished. Further, the continuous dependence of the threshold wave speed and of the wave profiles on a real parameter is studied, both when the process maintains its diffusion-aggregation nature and when it switches from it to another regime.
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页数:22
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