Self-similar Spreading in a Merging-Splitting Model of Animal Group Size
Self-similar Spreading in a Merging-Splitting Model of Animal Group Size
复制标题
动物群体规模合并-分裂模型中的自相似传播
DOI:
10.1007/s10955-019-02280-w
复制
发表时间:
2019
影响因子:
1.6
通讯作者:
Pego, Robert L.
中科院分区:
文献类型:
--
作者:
Liu, Jian-Guo;Niethammer, B.;Pego, Robert L.
In a recent study of certain merging-splitting models of animal-group size (Degond et al. in J Nonlinear Sci 27(2):379–424, 2017), it was shown that an initial size distribution with infinite first moment leads to convergence to zero in weak sense, corresponding to unbounded growth of group size. In the present paper we show that for any such initial distribution with a power-law tail, the solution approaches a self-similar spreading form. A one-parameter family of such self-similar solutions exists, with densities that are completely monotone, having power-law behavior in both small and large size regimes, with different exponents.
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DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
B. Niethammer;S. Throm;J. Vel'azquez
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DOI:
--
发表时间:
2002
期刊:
影响因子:
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