Journal
PHYSICS LETTERS A
Volume 424, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.physleta.2021.127871
Keywords
Non-absorbing SIR model; Hybrid lattices; Percolating cluster; Critical exponent ratios; Monte Carlo simulation
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This paper investigates the critical behavior of the spread of infectious diseases through a novel approach to the SIR epidemiological model using Monte Carlo calculations. By analyzing the critical threshold and leading critical exponent ratios in different cases of hybrid lattices, the universality class of the model is determined.
In this paper, we perform Monte Carlo calculations to study the critical behavior of the spread of infectious diseases through a novel approach to the SIR epidemiological model. A stochastic lattice gas version of the model was applied on hybrid lattices which, in turn, are generated from typical square lattices when inserting a connection probability p that a given lattice site has both first- and second-nearest neighbor interactions. By combining percolation theory and finite-size scaling analysis, we estimate both the critical threshold and leading critical exponent ratios of the non-absorbing SIR model in different cases of hybrid lattices. An analysis of the average size of the percolating cluster and the size distribution of non-percolating clusters of recovered individuals was carried out to determine the universality class of the model. (C) 2021 Elsevier B.V. All rights reserved.
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