Nagy, Noémi and Simon, Péter L.
(2020)
*Detailed Analytic Study of the Compact Pairwisemodel for SIS Epidemic Propagation on Networks.*
DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS-SERIES B, 25 (1).
pp. 99-115.
ISSN 1531-3492 (print); 1553-524X (online)

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## Abstract

The global behaviour of the compact pairwise approximation of SIS epidemic propagation on networks is studied. It is shown that the system can be reduced to two equations enabling us to carry out a detailed study of the dynamic properties of the solutions. It is proved that transcritical bifurcation occurs in the system at tau = tau(c) = gamma(n)/(n(2)) - n, where tau and gamma are infection and recovery rates, respectively, n is the average degree of the network and (n(2)) is the second moment of the degree distribution. For subcritical values of tau the disease-free steady state is stable, while for supercritical values a unique stable endemic equilibrium appears. We also prove that for subcritical values of tau the disease- free steady state is globally stable under certain assumptions on the graph that cover a wide class of networks.

Item Type: | Article |
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Uncontrolled Keywords: | Global stability; SIS epidemic; Network process; Transcritical bifurcation; Pairwise approximation |

Subjects: | Q Science / természettudomány > QA Mathematics / matematika > QA74 Analysis / analízis |

SWORD Depositor: | MTMT SWORD |

Depositing User: | MTMT SWORD |

Date Deposited: | 04 Nov 2019 07:44 |

Last Modified: | 04 Nov 2019 07:44 |

URI: | http://real.mtak.hu/id/eprint/102839 |

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