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Влияние направленной миграции на заболеваемость населения в SIS-модели

Authors: Budyansky, A.V.;

Влияние направленной миграции на заболеваемость населения в SIS-модели

Abstract

Александр Владимирович Будянский, кандидат физико-математических наук, кафедра ≪Математика и информатика≫, Донской государственный технический университет (г. Ростов-на-Дону, Российская Федерация), a_v_budyansky@mail.ru. Рассмотрена математическая модель распространения инфекционного заболевания, записываемая в виде системы нелинейных уравнений параболического типа. Изучается пространственно-временная эволюция плотностей двух групп населения: восприимчивых к инфекции и инфицированных. Допускается взаимный переход из одной группы в другую. Динамика плотностей определяется миграционными потоками и локальным взаимодействием. Миграционные потоки обусловлены диффузионным распространением населения по ареалу и направленной миграцией, вызванной некоторым стимулом. Моделирование проводится с учетом смертности инфицированных. В вычислительных экспериментах определена роль миграционных факторов в эпидемиологических сценариях. Mathematical model of the spread of an infectious disease, written in the form of a system of nonlinear equations of parabolic type, is considered. The spatial and temporal evolution of the densities of two population groups is studied: susceptible to infection and infected. Mutual transition from one group to another is allowed. The dynamics of densities are determined by migration flows and local interaction. Migration flows are caused by the diffusion of the population across the area and directed migration caused by some stimulus. The modeling is carried out taking into account the mortality of infected people. Computational experiments determined the role of migration factors in epidemiological scenarios. Работа проводилась при финансовой поддержке Российского научного фонда (проект 23-21-00221). The work was carried out with the financial support of the Russian Science Foundation (project 23-21-00221).

Keywords

нелинейные параболические уравнения, taxis, nonlinear PDEs, УДК 519.63, направленная миграция, mathematical modelling, компартментальная модель, compartmental model, эпидемия, epidemic, математическое моделирование

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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Green