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Russia Petrozavodsk
Section Mathematics
Title Optimal behavior dynamics of the two-species community with intraspecific competition and migration
Author(-s) Kirillov A.N.a, Danilova I.V.a
Affiliations Institute of Applied Mathematical Research, Karelian Research Centre of the Russian Academy of Sciencesa
Abstract Some problems of the theory of optimal foraging are considered, namely, the problem of predator's choice of the most suitable patch and finding conditions for leaving it. The dynamics of the interaction between the predator and the prey is determined by the Lotka-Volterra system, which takes into account the intraspecific competition of the prey and the possibility of migration of the predator and the prey. Some fractions of populations participate, in the processes of interaction and migration. The problem of finding optimal shares from the point of view of Nash equilibrium is solved. In this case, a partition of the phase space of the system into domains with different behavior of the populations was obtained. We study the optimal trajectories of the corresponding dynamical system with a variable structure, their behavior on the boundaries of the phase space partition. The equilibrium positions are found and their global stability is proved under certain restrictions on the system parameters. In one of the cases of the relationship between the parameters, the study of the qualitative behavior of the optimal trajectories gives rise to the problem of the existence of limit cycles. In this case, an estimate of the corresponding domain of attraction of equilibrium is given.
Keywords optimal dynamics, intraspecific competition, migration, global stability, Nash equilibrium
UDC 517.977
MSC 37N25
DOI 10.20537/vm190404
Received 5 August 2019
Language Russian
Citation Kirillov A.N., Danilova I.V. Optimal behavior dynamics of the two-species community with intraspecific competition and migration, Vestnik Udmurtskogo Universiteta. Matematika. Mekhanika. Komp'yuternye Nauki, 2019, vol. 29, issue 4, pp. 518-531.
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