Fisher waves in an epidemic model

WebSep 26, 2024 · This paper deals with the pulsating waves and entire solutions for a spatially periodic nonlocal dispersal model with a quiescent stage. By the method of super- and subsolutions together with the comparison principle, we establish the existence of pulsating waves with any speed larger than the spreading speed. The construction of … WebApr 12, 2024 · MIS-C patients presented with distinct laboratory features across the COVID-19 pandemic. Violin plots depicting differences in key laboratory MIS-C features in patients presenting during the four waves (panel A) and both phases (phase one is wave one and two combined, phase two is wave three and four combined; panel B) of the COVID-19 …

Stability analysis and Hopf bifurcation in a diffusive epidemic model ...

WebSep 2, 2006 · Volz R. (1982). Global asymptotic stability of a periodic solution to an epidemic model. J. Math. Biol. 15, 319–338. Article MATH MathSciNet Google Scholar ... Wang W. (2004). Fisher waves in an epidemic model. Discret. Contin. Dyn. Syst. Ser. B 4, 1117–1128. Article MATH Google Scholar Download references. Author information. WebJun 9, 2024 · A diffusive epidemic model with two delays subjecting to Neumann boundary conditions is considered. First we obtain the existence and the stability of the positive constant steady state. Then we investigate the existence of Hopf bifurcations by analyzing the distribution of the eigenvalues. Furthermore, we derive the normal form on … canada customs thunder bay https://max-cars.net

Speed Selection of Traveling Waves to an Epidemic Model

WebDec 31, 2011 · We study the traveling waves of reaction-diffusion equations for a diffusive SIR model. The existence of traveling waves is determined by the basic reproduction number of the corresponding ordinary differential equations and the minimal wave speed. Our proof is based on Schauder fixed point theorem and Laplace transform. WebJan 1, 2024 · The existence of Fisher type monotone traveling waves and the minimal wave speed are established for a reaction-diffusion system modeling man-environment-man epidemics via the method of upper and ... WebAug 1, 2024 · The aim of this paper is to study the periodic traveling wave solutions in a nonautonomous reaction-diffusion susceptible-infected-removed epidemic model with general nonlinear incidence and time ... canada customs information

Spreading fronts in a partially degenerate integro-differential ...

Category:Dynamical Modeling and Analysis of Epidemics - World Scientific

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Fisher waves in an epidemic model

[PDF] Traveling Wavefronts on Reaction Diffusion Systems with …

WebJun 1, 2024 · Xiao-Qiang Zhao: Fisher Waves In An Epidemic Model, Discrete And Continuous Dynamical Systems Series B Volume 4, Number 4 (Nov 2004), pp 1117 … WebThis timely book covers the basic concepts of the dynamics of epidemic disease, presenting various kinds of models as well as typical research methods and results. It …

Fisher waves in an epidemic model

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WebAug 30, 2013 · Fisher waves in an epidemic model. Xiao-Qiang Zhao, Wendi Wang; Mathematics. 2004; The existence of Fisher type monotone traveling waves and the minimal wave speed are established for a reaction-diffusion system modeling man-environment-man epidemics via the method of upper and ... WebAt the very beginning of the European spread of SARS-CoV-2, Piedmont was one of the most affected regions in Italy, with a strong impact on healthcare organizations. In this study, we evaluated the characteristics and outcomes of the COVID-19 patients in an entire region during the first three pandemic waves, identifying similarities and differences in the …

WebNov 30, 2014 · A convolution model of mistletoes and birds with nonlocal diffusion is considered in this paper. We first consider the stability of the constant steady states of the model by linearized method, and then the existence of traveling solutions. ... X.-Q. Zhao and W. D. Wang, Fisher waves in an epidemic model, Discrete Contin. Dyn. Syst. Ser. B, 4 ... WebWe study the wave solutions for a degenerated reaction diffusion system arising from the invasion of cells. We show that there exists a family of waves for the wave speed larger than or equal a certain number and below which there are no monotonic wave solutions. We also investigate the monotonicity, uniqueness, and asymptotics of the waves.

WebDec 31, 2002 · The existence of Fisher type monotone traveling waves and theminimal wave speed are established for a reaction-diffusion system modelingman-environment-man … WebJul 13, 2024 · In Fisher's model for the migration of advantageous genes, in epidemic models and in the theory of combustion similar existence problems for travelling fronts and waves occur.

WebNov 1, 2004 · Request PDF Fisher waves in an epidemic model The existence of Fisher type monotone traveling waves and the minimal wave speed are established for …

WebAn SIS Epidemic Model with Vaccination; An SIS Epidemic Model for Vector-Borne Diseases; Stability Switches and Ultimate Stability; An SEIRS Epidemic Model with Two Delays; Quiescence of Epidemics in a Patch Model; Basic Reproductive Numbers in ODE Models; Basic Reproductive Numbers of Models with Delays; Fisher Waves in an … fish englewood fl transportation serviceWebNov 19, 2012 · Xu D and Zhao X Q 2004 Bistable waves in an epidemic model J. Dyn. Diff. Eqns 16 679–707. Crossref Google Scholar ... Zhao X Q and Wang W 2004 Fisher … canada customs winnipegWebMar 30, 2024 · We obtain a more precise estimation of the minimal wave speed of the epidemic model, which is of great practical value in the control of serious epidemics. … fish enhancement and releaseWebJul 1, 2024 · Ducrot and Magal [3] also studied the existence and non-existence of traveling wave solutions of a age-structured SI epidemic model with external supplies. Inspired … canada cyber security awarenessWebAug 1, 2004 · Fisher waves in an epidemic model. The existence of Fisher type monotone traveling waves and the minimal wave speed are established for a reaction-diffusion system modeling man-environment-man epidemics via the method of upper and lower solutions … canada customs windsor ambassador bridgeWebSep 13, 2024 · Xu, D., Zhao, X.Q.: Asymptotic speed of spread and traveling waves for a nonlocal epidemic model. Discrete Continuous Dyn. Syst. Ser. B 5, 1043–1056 (2005) ... Fisher waves in an epidemic model. Discrete Continuous Dyn. Syst. Ser. B 4, 1117–1128 (2004) Article MathSciNet MATH Google Scholar ... fish en presente simpleWebJun 1, 2024 · This paper is concerned with the spatial propagation of an SIR epidemic model with nonlocal diffusion and free boundaries describing the evolution of a disease. … canada cutting tools