scholarly journals PHASE TRANSITIONS IN SOME EPIDEMIC MODELS DEFINED ON SMALL-WORLD NETWORKS

2003 ◽  
Vol 14 (06) ◽  
pp. 825-833 ◽  
Author(s):  
H. N. AGIZA ◽  
A. S. ELGAZZAR ◽  
S. A. YOUSSEF
Keyword(s):  
Phase Transitions ◽  
Small World ◽  
Epidemic Models ◽  
Small World Networks ◽  
Inhomogeneous Models ◽  
Sirs Model ◽  
Variable Susceptibility

Some modified versions of susceptible-infected-recovered-susceptible (SIRS) model are defined on small-world networks. Latency, incubation and variable susceptibility are separately included. Phase transitions in these models are studied. Then inhomogeneous models are introduced. In some cases, the application of the models to small-world networks is shown to increase the epidemic region.

scholarly journals Non-equilibrium Phase Transitions in 2D Small-World Networks: Competing Dynamics

Open Physics ◽  
2019 ◽  
Vol 17 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Wei Liu ◽  
Zhengxin Yan ◽  
Gaoliang Zhou
Keyword(s):  
Phase Transitions ◽  
Tricritical Point ◽  
Equilibrium Phase ◽  
Finite Size ◽  
Small World ◽  
Ferromagnetic Phase ◽  
Kawasaki Dynamics ◽  
Small World Networks ◽  
Competing Dynamics ◽  
Non Equilibrium

Abstract This article offers a detailed analysis of the Ising model in 2D small-world networks with competing Glauber and Kawasaki dynamics. The non-equilibrium stationary state phase transitions are obtained in these networks. The phase transitions are discussed, and the phase diagrams are obtained via Monte Carlo simulations and finite-size analyzing. We find that as the addition of links increases the phase transition temperature increases and the transition competing probability of tricritical point decreases. For the competition of the two dynamics, ferromagnetic to anti-ferromagnetic phase transitions and the critical endpoints are found in the small-world networks.

scholarly journals AN EPIDEMIC MODEL ON SMALL-WORLD NETWORKS AND RING VACCINATION

2002 ◽  
Vol 13 (02) ◽  
pp. 189-198 ◽  
Author(s):  
E. AHMED ◽  
A. S. HEGAZI ◽  
A. S. ELGAZZAR
Keyword(s):  
Epidemic Model ◽  
Vaccination Programme ◽  
Foot And Mouth Disease ◽  
Small World ◽  
Analytical Approximation ◽  
Theoretical Explanation ◽  
Small World Networks ◽  
Epidemic Spreading ◽  
Sirs Model ◽  
Ring Vaccination

A modified version of susceptible-infected-recovered-susceptible (SIRS) model for the outbreaks of foot-and-mouth disease (FMD) is introduced. The model is defined on small-world networks, and a ring vaccination programme is included. This model can be a theoretical explanation for the nonlocal interactions in epidemic spreading. Ring vaccination is capable of eradicating FMD provided that the probability of infection is high enough. Also an analytical approximation for this model is studied.

Networks

2018 ◽  
Author(s):  
Stefan Thurner ◽  
Rudolf Hanel ◽  
Peter Klimekl
Keyword(s):  
Complex Systems ◽  
Complex Networks ◽  
Phase Diagrams ◽  
Community Detection ◽  
Network Science ◽  
Small World ◽  
Small World Networks ◽  
Multilayer Networks ◽  
Basic Vocabulary

Understanding the interactions between the components of a system is key to understanding it. In complex systems, interactions are usually not uniform, not isotropic and not homogeneous: each interaction can be specific between elements.Networks are a tool for keeping track of who is interacting with whom, at what strength, when, and in what way. Networks are essential for understanding of the co-evolution and phase diagrams of complex systems. Here we provide a self-contained introduction to the field of network science. We introduce ways of representing and handle networks mathematically and introduce the basic vocabulary and definitions. The notions of random- and complex networks are reviewed as well as the notions of small world networks, simple preferentially grown networks, community detection, and generalized multilayer networks.

scholarly journals Multifractal analysis of eigenvectors of small-world networks

2021 ◽  
Vol 144 ◽  
pp. 110745
Author(s):  
Ankit Mishra ◽  
Jayendra N. Bandyopadhyay ◽  
Sarika Jalan
Keyword(s):  
Multifractal Analysis ◽  
Small World ◽  
Small World Networks
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