Asymptotic behavior of the principal eigenvalue and the basic reproduction ratio for periodic patch models

Asymptotic behavior of the principal eigenvalue and the basic reproduction ratio for periodic patch models
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周期性斑块模型主特征值和基本再现比的渐近行为

DOI:
10.1007/s11425-021-1894-2
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发表时间:
2021-08
期刊:
Science China Mathematics
影响因子:
--
通讯作者:
Xiao-Qiang Zhao
Xiao-Qiang Zhao
中科院分区:
其他
文献类型:
--
作者:
Lei Zhang;Xiao-Qiang Zhao

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本文研究了小分布率和大分布率条件下,与周期性种群模型相关的主特征值和基本繁殖率的渐近行为。我们首先处理连接矩阵零特征值对应的特征空间。然后,我们分别研究了一类相关周期特征值问题的主特征值在扩散速率趋近于零和趋近于无穷时的极限轮廓。我们进一步建立了在小分散率和大分散率情况下基本繁殖比的渐近行为。最后,我们将这些结果应用于周期性Ross-Macdonald补丁模型。
This paper is devoted to the study of the asymptotic behavior of the principal eigenvalue and the basic reproduction ratio associated with periodic population models in a patchy environment for small and large dispersal rates. We first deal with the eigenspace corresponding to the zero eigenvalue of the connectivity matrix. Then we investigate the limiting profile of the principal eigenvalue of an associated periodic eigenvalue problem as the dispersal rate goes to zero and infinity, respectively. We further establish the asymptotic behavior of the basic reproduction ratio in the case of small and large dispersal rates. Finally, we apply these results to a periodic Ross-Macdonald patch model.
DOI: 10.2307/3614217
发表时间: 1968-10
期刊: The Mathematical Gazette
影响因子: --
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