Abstract
In this paper, we analyze a system of nonlinear integral equations resulting from the three-parameter closure of the third spatial moments in the logistic dynamics model of U. Dieckmann and R. Law in the multi-species case. Specifically, the conditions under which the solution of this system is stable with respect to the closure parameters are investigated. To do this, the initial system of equations is represented as a single operator equation in a special Banach space, after which the generalized fixed point principle is applied.
REFERENCES
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U. Dieckmann and R. Law, “Relaxation projections and the method of moments,” The Geometry of Ecological Interactions: Simplifying Spatial Complexity, Ed. by U. Dieckmann, R. Law, and J. A. J. Metz (Cambridge Univ. Press, Cambridge, 2000), pp. 412–455.
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M. V. Nikolaev, A. A. Nikitin, and U. Dieckmann, “Application of a generalized fixed point principle to the study of a system of nonlinear integral equations arising in the population dynamics model,” Differ. Equations 58 (9), 1233–1241 (2022).
M. V. Nikolaev, U. Dieckmann, and A. A. Nikitin, “Application of special function spaces to the study of nonlinear integral equations arising in equilibrium spatial logistic dynamics,” Dokl. Math. 104 (1), 188–192 (2021).
Funding
The results in Sections 1 and 2 were obtained by Nikitin with financial support from the Russian Science Foundation, project no. 22-11-00042. The other results were obtained by all the authors with support from the Ministry of Science and Higher Education of the Russian Federation within the framework of the program of the Moscow Center for Fundamental and Applied Mathematics, agreement no. 075-15-2022-284.
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Translated by I. Ruzanova
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Nikolaev, M.V., Nikitin, A.A. & Dieckmann, U. Stability Analysis of the Solution to a System of Nonlinear Integral Equations Arising in a Logistic Dynamics Model. Dokl. Math. 106, 445–448 (2022). https://doi.org/10.1134/S1064562422700144
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DOI: https://doi.org/10.1134/S1064562422700144