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    題名: Persistence of preys in a diffusive three species predator-prey system with a pair of strong-weak competing preys
    作者: Chen, Yu-Shuo;Giletti, Thomas;Guo, Jong-Shenq
    關鍵詞: Predator-prey system;Persistence;Traveling wave;Invaded state;Invading state
    日期: 2021-04-25
    上傳時間: 2021-05-05 12:13:19 (UTC+8)
    出版者: Academic Press
    摘要: We investigate the traveling wave solutions of a three-species system involving a single predator and a pair of strong-weak competing preys. Our results show how the predation may affect this dynamics. More precisely, we describe several situations where the environment is initially inhabited by the predator and by either one of the two preys. When the weak competing prey is an aboriginal species, we show that there exist traveling waves where the strong prey invades the environment and either replaces its weak counterpart, or more surprisingly the three species eventually co-exist. Furthermore, depending on the parameters, we can also construct traveling waves where the weaker prey actually invades the environment initially inhabited by its strong competitor and the predator. In all those situations, we find the infimum of the set of admissible wave speeds; these results are sharp at least when the three species diffusive at the same speed.
    關聯: Journal of Differential Equations 281, p.341-378
    DOI: 10.1016/j.jde.2021.02.013
    顯示於類別:[數學學系暨研究所] 期刊論文

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