J A Tenreiro Machado,António M Lopes
J A Tenreiro Machado
Complex systems have characteristics that give rise to the emergence of rare and extreme events. This paper addresses an example of such type of crisis, namely the spread of the new Coronavirus disease 2019 (COVID-19). The study deals with ...
Shuzhen Yu,Zhiyong Yu,Haijun Jiang et al.
Shuzhen Yu et al.
This paper studies the rumor propagation model with heterogeneous networks in a multilingual environment. Firstly, a rumor propagation model with two language spreaders, in which the immunologic mechanism is considered in the ignorant, is p...
Heather A Harrington,Robert A Van Gorder
Heather A Harrington
We consider reduction of dimension for nonlinear dynamical systems. We demonstrate that in some cases, one can reduce a nonlinear system of equations into a single equation for one of the state variables, and this can be useful for computin...
Dynamical analysis and control strategies of an SIVS epidemic model with imperfect vaccination on scale-free networks [0.03%]
具有不完善疫苗接种的无标度网络上SIVS流行病模型的动力学分析与控制策略研究
Wei Lv,Qing Ke,Kezan Li
Wei Lv
Vaccination is an effective method to prevent the spread of infectious diseases. In this paper, we develop an SIVS epidemic model with degree-related transmission rates and imperfect vaccination on scale-free networks. Firstly, we derive tw...
The similarity analysis of financial stocks based on information clustering [0.03%]
基于信息聚类的金融股票相似性分析
Qiang Tian,Pengjian Shang,Guochen Feng
Qiang Tian
Similarity in time series is an important feature of dynamical systems such as financial systems, with potential use for clustering of series in system. Here, we mainly introduce a novel method: the reconstructed phase space information clu...
Fuzhong Nian,Ke Wang
Fuzhong Nian
In this paper, the two-step high-risk immunization was investigated based on high-risk immunization for the SIRS model in small-world networks and scale-free networks. First, the effects of various immunization schemes are studied and compa...
Complex dynamic behavior in a viral model with state feedback control strategies [0.03%]
具有状态反馈控制策略的病毒感染模型中的复杂动力学行为
Lin-Fei Nie,Zhi-Dong Teng,Il Hyo Jung
Lin-Fei Nie
With the consideration of mechanism of prevention and control for the spread of viral diseases, in this paper, we propose two novel virus dynamics models where state feedback control strategies are introduced. The first model incorporates t...
Tao Wang
Tao Wang
All species live in space, and the research of spatial diseases can be used to control infectious diseases. As a result, it is more realistic to study the spatial pattern of epidemic models with space and time. In this paper, spatial dynami...
Gui-Quan Sun
Gui-Quan Sun
One subject of spatial epidemiology is spatial variation in disease risk or incidence. The spread of epidemics can result in strong spatial patterns of such risk or incidence: for example, pathogen dispersal might be highly localized, vecto...
Dynamics of a novel nonlinear SIR model with double epidemic hypothesis and impulsive effects [0.03%]
具有双流行假说和脉冲效应的非线性SIR模型的动力学行为研究
Xinzhu Meng,Zhenqing Li,Xiaoling Wang
Xinzhu Meng
In this paper, the propagation of a nonlinear delay SIR epidemic using the double epidemic hypothesis is modeled. In the model, a system of impulsive functional differential equations is studied and the sufficient conditions for the global ...