Log in

Relevant bibliographies by topics / NONLINEAR INCIDENCE RATES / Journal articles

To see the other types of publications on this topic, follow the link: NONLINEAR INCIDENCE RATES.

Journal articles on the topic 'NONLINEAR INCIDENCE RATES'

Author: Grafiati

Published: 11 September 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'NONLINEAR INCIDENCE RATES.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Liu, Wei-min, Herbert W. Hethcote, and Simon A. Levin. "Dynamical behavior of epidemiological models with nonlinear incidence rates." Journal of Mathematical Biology 25, no. 4 (September 1987): 359–80. http://dx.doi.org/10.1007/bf00277162.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Hui, Jing, and Lansun Chen. "Impulsive vaccination of sir epidemic models with nonlinear incidence rates." Discrete & Continuous Dynamical Systems - B 4, no. 3 (2004): 595–605. http://dx.doi.org/10.3934/dcdsb.2004.4.595.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Mukherjee, D., J. Chattopadhyay, and P. K. Tapaswi. "Global stability results of epidemiological models with nonlinear incidence rates." Mathematical and Computer Modelling 18, no. 2 (July 1993): 89–92. http://dx.doi.org/10.1016/0895-7177(93)90009-n.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Ponciano, José M., and Marcos A. Capistrán. "First Principles Modeling of Nonlinear Incidence Rates in Seasonal Epidemics." PLoS Computational Biology 7, no. 2 (February 17, 2011): e1001079. http://dx.doi.org/10.1371/journal.pcbi.1001079.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Sachs, Dominik, Aleh Tsyvinski, and Nicolas Werquin. "Nonlinear Tax Incidence and Optimal Taxation in General Equilibrium." Econometrica 88, no. 2 (2020): 469–93. http://dx.doi.org/10.3982/ecta14681.

Full text

Abstract:

We study the incidence of nonlinear labor income taxes in an economy with a continuum of endogenous wages. We derive in closed form the effects of reforming nonlinearly an arbitrary tax system, by showing that this problem can be formalized as an integral equation. Our tax incidence formulas are valid both when the underlying assignment of skills to tasks is fixed or endogenous. We show qualitatively and quantitatively that contrary to conventional wisdom, if the tax system is initially suboptimal and progressive, the general‐equilibrium “trickle‐down” forces may raise the benefits of increasing the marginal tax rates on high incomes. We finally derive a parsimonious characterization of optimal taxes.

APA, Harvard, Vancouver, ISO, and other styles

6

Rohith, G., and K. B. Devika. "Dynamics and control of COVID-19 pandemic with nonlinear incidence rates." Nonlinear Dynamics 101, no. 3 (June 25, 2020): 2013–26. http://dx.doi.org/10.1007/s11071-020-05774-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Liu, Yicheng, Yimin Du, and Jianhong Wu. "Backward/Hopf bifurcations in SIS models with delayed nonlinear incidence rates." Frontiers of Mathematics in China 3, no. 4 (October 23, 2008): 535–53. http://dx.doi.org/10.1007/s11464-008-0040-y.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Li, Li, Gui-Quan Sun, and Zhen Jin. "Bifurcation and chaos in an epidemic model with nonlinear incidence rates." Applied Mathematics and Computation 216, no. 4 (April 2010): 1226–34. http://dx.doi.org/10.1016/j.amc.2010.02.014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Yuan, Zhaohui, and Lin Wang. "Global stability of epidemiological models with group mixing and nonlinear incidence rates." Nonlinear Analysis: Real World Applications 11, no. 2 (April 2010): 995–1004. http://dx.doi.org/10.1016/j.nonrwa.2009.01.040.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Lu, Zhonghua, Xianning Liu, and Lansun Chen. "Hopf bifurcation of nonlinear incidence rates SIR epidemiological models with stage structure." Communications in Nonlinear Science and Numerical Simulation 6, no. 4 (December 2001): 205–9. http://dx.doi.org/10.1016/s1007-5704(01)90015-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Wang, Yi, and Jinde Cao. "Global stability of general cholera models with nonlinear incidence and removal rates." Journal of the Franklin Institute 352, no. 6 (June 2015): 2464–85. http://dx.doi.org/10.1016/j.jfranklin.2015.03.030.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Sun, Chengjun, Yiping Lin, and Shoupeng Tang. "Global stability for an special SEIR epidemic model with nonlinear incidence rates." Chaos, Solitons & Fractals 33, no. 1 (July 2007): 290–97. http://dx.doi.org/10.1016/j.chaos.2005.12.028.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Upadhyay, Ranjit Kumar, Ashok Kumar Pal, Sangeeta Kumari, and Parimita Roy. "Dynamics of an SEIR epidemic model with nonlinear incidence and treatment rates." Nonlinear Dynamics 96, no. 4 (April 4, 2019): 2351–68. http://dx.doi.org/10.1007/s11071-019-04926-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Liu, Wei-min, Simon A. Levin, and Yoh Iwasa. "Influence of nonlinear incidence rates upon the behavior of SIRS epidemiological models." Journal of Mathematical Biology 23, no. 2 (February 1986): 187–204. http://dx.doi.org/10.1007/bf00276956.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Alshammari, Fehaid Salem, and Muhammad Altaf Khan. "Dynamic behaviors of a modified SIR model with nonlinear incidence and recovery rates." Alexandria Engineering Journal 60, no. 3 (June 2021): 2997–3005. http://dx.doi.org/10.1016/j.aej.2021.01.023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Chowell, Gerardo, Lisa Sattenspiel, Shweta Bansal, and Cécile Viboud. "Early sub-exponential epidemic growth: Simple models, nonlinear incidence rates, and additional mechanisms." Physics of Life Reviews 18 (September 2016): 114–17. http://dx.doi.org/10.1016/j.plrev.2016.08.016.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Wang, Feng, Shan Wang, and Youhua Peng. "Asymptotic Behavior of Multigroup SEIR Model with Nonlinear Incidence Rates under Stochastic Perturbations." Discrete Dynamics in Nature and Society 2020 (May 5, 2020): 1–12. http://dx.doi.org/10.1155/2020/9367879.

Full text

Abstract:

In this paper, the asymptotic behavior of a multigroup SEIR model with stochastic perturbations and nonlinear incidence rate functions is studied. First, the existence and uniqueness of the solution to the model we discuss are given. Then, the global asymptotical stability in probability of the model with R0<1 is established by constructing Lyapunov functions. Next, we prove that the disease can die out exponentially under certain stochastic perturbation while it is persistent in the deterministic case when R0>1. Finally, several examples and numerical simulations are provided to illustrate the dynamic behavior of the model and verify our analytical results.

APA, Harvard, Vancouver, ISO, and other styles

18

Lee, Kwang Sung, and Daewook Kim. "Global dynamics of a pine wilt disease transmission model with nonlinear incidence rates." Applied Mathematical Modelling 37, no. 6 (March 2013): 4561–69. http://dx.doi.org/10.1016/j.apm.2012.09.042.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Sun, Ruoyan, and Junping Shi. "Global stability of multigroup epidemic model with group mixing and nonlinear incidence rates." Applied Mathematics and Computation 218, no. 2 (September 2011): 280–86. http://dx.doi.org/10.1016/j.amc.2011.05.056.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Kumar, Abhishek, and Nilam. "Mathematical analysis of a delayed epidemic model with nonlinear incidence and treatment rates." Journal of Engineering Mathematics 115, no. 1 (March 7, 2019): 1–20. http://dx.doi.org/10.1007/s10665-019-09989-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Halder, Manisha, and Dr D. S. Sharma. "A Mathematical Analysis of Dynamical Behaviour of Epidemiological Models with Nonlinear Incidence Rates." International Journal of Scientific Research in Modern Science and Technology 2, no. 5 (May 31, 2023): 33–40. http://dx.doi.org/10.59828/ijsrmst.v2i5.86.

Full text

Abstract:

An updated model of an epidemic is discussed, one in which incidence has plateaued but treatment has not been fully implemented. All equilibrium points are checked for existence. In this research, we examine how shifts from the SIR (susceptible-infectious-resistant) to the SIS (susceptible-infectious-susceptible) paradigm manifest in epidemiological models. These models hypothesize that the irresistible power is a nonlinear capability of the populace thickness of contaminated individuals. At last, this model might be utilized to research the elements of infection spread, provided that the two phenomena follow consistent patterns.

APA, Harvard, Vancouver, ISO, and other styles

22

Zhao, Xiangming, and Jianping Shi. "Dynamic behavior of a stochastic SIR model with nonlinear incidence and recovery rates." AIMS Mathematics 8, no. 10 (2023): 25037–59. http://dx.doi.org/10.3934/math.20231278.

Full text

Abstract:

<abstract><p>The spread of infectious diseases are inevitably affected by natural and social factors, and their evolution presents oscillations and other uncertainties. Therefore, it is of practical significance to consider stochastic noise interference in the studies of infectious disease models. In this paper, a stochastic SIR model with nonlinear incidence and recovery rate is studied. First, a unique global positive solution for any initial value of the system is proved. Second, we provide the sufficient conditions for disease extinction or persistence, and the influence of threshold $ \tilde{R_{0}} $ of the stochastic SIR model on disease state transition is analyzed. Additionally, we prove that the system has a stationary distribution under some given parameter conditions by building an appropriate stochastic Lyapunov function as well as using the equivalent condition of the Hasminskii theorem. Finally, the correctness of these theoretical results are validated by numerical simulations.</p></abstract>

APA, Harvard, Vancouver, ISO, and other styles

23

Li, Jun Hong, Ning Cui, and Hong Kai Sun. "Dynamic Behavior for an SIRS Model with Nonlinear Incidence Rate." Advanced Materials Research 479-481 (February 2012): 1495–98. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.1495.

Full text

Abstract:

An SIRS epidemic model with nonlinear incidence rate is studied. It is assumed that susceptible and infectious individuals have constant immigration rates. By means of Dulac function and Poincare-Bendixson Theorem, we proved the global asymptotical stable results of the disease-free equilibrium. It is then obtained the model undergoes Hopf bifurcation and existence of one limit cycle. Some numerical simulations are given to illustrate the analytical results.

APA, Harvard, Vancouver, ISO, and other styles

24

Torku, Thomas, Abdul Khaliq, and Fathalla Rihan. "SEINN: A deep learning algorithm for the stochastic epidemic model." Mathematical Biosciences and Engineering 20, no. 9 (2023): 16330–61. http://dx.doi.org/10.3934/mbe.2023729.

Full text

Abstract:

<abstract><p>Stochastic modeling predicts various outcomes from stochasticity in the data, parameters and dynamical system. Stochastic models are deemed more appropriate than deterministic models accounting in terms of essential and practical information about a system. The objective of the current investigation is to address the issue above through the development of a novel deep neural network referred to as a stochastic epidemiology-informed neural network. This network learns knowledge about the parameters and dynamics of a stochastic epidemic vaccine model. Our analysis centers on examining the nonlinear incidence rate of the model from the perspective of the combined effects of vaccination and stochasticity. Based on empirical evidence, stochastic models offer a more comprehensive understanding than deterministic models, mainly when we use error metrics. The findings of our study indicate that a decrease in randomness and an increase in vaccination rates are associated with a better prediction of nonlinear incidence rates. Adopting a nonlinear incidence rate enables a more comprehensive representation of the complexities of transmitting diseases. The computational analysis of the proposed method, focusing on sensitivity analysis and overfitting analysis, shows that the proposed method is efficient. Our research aims to guide policymakers on the effects of stochasticity in epidemic models, thereby aiding the development of effective vaccination and mitigation policies. Several case studies have been conducted on nonlinear incidence rates using data from Tennessee, USA.</p></abstract>

APA, Harvard, Vancouver, ISO, and other styles

25

Chinyoka, Mirirai, Tinashe B. Gashirai, and Steady Mushayabasa. "On the Dynamics of a Fractional-Order Ebola Epidemic Model with Nonlinear Incidence Rates." Discrete Dynamics in Nature and Society 2021 (December 3, 2021): 1–12. http://dx.doi.org/10.1155/2021/2125061.

Full text

Abstract:

We propose a new fractional-order model to investigate the transmission and spread of Ebola virus disease. The proposed model incorporates relevant biological factors that characterize Ebola transmission during an outbreak. In particular, we have assumed that susceptible individuals are capable of contracting the infection from a deceased Ebola patient due to traditional beliefs and customs practiced in many African countries where frequent outbreaks of the disease are recorded. We conducted both epidemic and endemic analysis, with a focus on the threshold dynamics characterized by the basic reproduction number. Model parameters were estimated based on the 2014-2015 Ebola outbreak in Sierra Leone. In addition, numerical simulation results are presented to demonstrate the analytical findings.

APA, Harvard, Vancouver, ISO, and other styles

26

Han, Ping, Zhengbo Chang, and Xinzhu Meng. "Asymptotic Dynamics of a Stochastic SIR Epidemic System Affected by Mixed Nonlinear Incidence Rates." Complexity 2020 (May 8, 2020): 1–17. http://dx.doi.org/10.1155/2020/8596371.

Full text

Abstract:

This paper considers a stochastic SIR epidemic system affected by mixed nonlinear incidence rates. Using Markov semigroup theory and the Fokker–Planck equation, we explore the asymptotic dynamics of the stochastic system. We first investigate the existence of a positive solution and its uniqueness. Furthermore, we prove that the stochastic system has an asymptotically stable stationary distribution. In addition, the sufficient conditions for disease extinction are also obtained, which imply that the white noise can suppress and control the spread of infectious diseases. Finally, in order to illustrate the analytical results, we give some numerical simulations.

APA, Harvard, Vancouver, ISO, and other styles

27

Muroya, Yoshiaki, Yoichi Enatsu, and Yukihiko Nakata. "Monotone iterative techniques to SIRS epidemic models with nonlinear incidence rates and distributed delays." Nonlinear Analysis: Real World Applications 12, no. 4 (August 2011): 1897–910. http://dx.doi.org/10.1016/j.nonrwa.2010.12.002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Elaiw, A. M., and N. H. AlShamrani. "Dynamics of viral infection models with antibodies and general nonlinear incidence and neutralize rates." International Journal of Dynamics and Control 4, no. 3 (May 27, 2015): 303–17. http://dx.doi.org/10.1007/s40435-015-0181-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Soufiane, Bentout, and Tarik Mohammed Touaoula. "Global analysis of an infection age model with a class of nonlinear incidence rates." Journal of Mathematical Analysis and Applications 434, no. 2 (February 2016): 1211–39. http://dx.doi.org/10.1016/j.jmaa.2015.09.066.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Chen, Hao, and Jitao Sun. "Global stability of delay multigroup epidemic models with group mixing and nonlinear incidence rates." Applied Mathematics and Computation 218, no. 8 (December 2011): 4391–400. http://dx.doi.org/10.1016/j.amc.2011.10.015.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Enatsu, Yoichi, Eleonora Messina, Yoshiaki Muroya, Yukihiko Nakata, Elvira Russo, and Antonia Vecchio. "Stability analysis of delayed SIR epidemic models with a class of nonlinear incidence rates." Applied Mathematics and Computation 218, no. 9 (January 2012): 5327–36. http://dx.doi.org/10.1016/j.amc.2011.11.016.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

El Koufi, Amine, Jihad Adnani, Abdelkrim Bennar, and Noura Yousfi. "Analysis of a Stochastic SIR Model with Vaccination and Nonlinear Incidence Rate." International Journal of Differential Equations 2019 (August 21, 2019): 1–9. http://dx.doi.org/10.1155/2019/9275051.

Full text

Abstract:

We expand an SIR epidemic model with vertical and nonlinear incidence rates from a deterministic frame to a stochastic one. The existence of a positive global analytical solution of the proposed stochastic model is shown, and conditions for the extinction and persistence of the disease are established. The presented results are demonstrated by numerical simulations.

APA, Harvard, Vancouver, ISO, and other styles

33

Li, Junhong, and Ning Cui. "Dynamic Behavior for an SIRS Model with Nonlinear Incidence Rate and Treatment." Scientific World Journal 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/209256.

Full text

Abstract:

This paper considers an SIRS model with nonlinear incidence rate and treatment. It is assumed that susceptible and infectious individuals have constant immigration rates. We investigate the existence of equilibrium and prove the global asymptotical stable results of the endemic equilibrium. We then obtained that the model undergoes a Hopf bifurcation and existences a limit cycle. Some numerical simulations are given to illustrate the analytical results.

APA, Harvard, Vancouver, ISO, and other styles

34

Zhang, Ling, Jingmei Pang, and Jinliang Wang. "Stability Analysis of a Multigroup Epidemic Model with General Exposed Distribution and Nonlinear Incidence Rates." Abstract and Applied Analysis 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/354287.

Full text

Abstract:

We investigate a class of multigroup epidemic models with general exposed distribution and nonlinear incidence rates. For a simpler case that assumes an identical natural death rate for all groups, and with a gamma distribution for exposed distribution is considered. Some sufficient conditions are obtained to ensure that the global dynamics are completely determined by the basic production numberR0. The proofs of the main results exploit the method of constructing Lyapunov functionals and a graph-theoretical technique in estimating the derivatives of Lyapunov functionals.

APA, Harvard, Vancouver, ISO, and other styles

35

Lv, Wei, Xue-Ying Liu, Xin-Jian Xu, and Jie Lou. "Vaccination of a multi-group model of zoonotic diseases with direct and indirect transmission." International Journal of Biomathematics 12, no. 06 (August 2019): 1950068. http://dx.doi.org/10.1142/s1793524519500682.

Full text

Abstract:

Vaccination plays an important role in preventing or reducing the spread of zoonotic diseases. In this paper, we develop a susceptible-vaccinated-exposed-infectious-pathogen multi-group epidemic model of zoonotic diseases incorporating nonlinear direct and indirect incidence rates, nonlinear pathogen shedding rates, and common environmental contamination. Under certain assumptions, we first obtained the basic reproduction number of the model. Then, we utilized the comparison principle and global Lyapunov function method to prove global stability of dynamical equilibria. Finally, we analyzed optimal vaccination strategy. All the theoretical predictions were verified by numerical simulations.

APA, Harvard, Vancouver, ISO, and other styles

36

Ozair, Muhammad. "Analysis of Pine Wilt Disease Model with Nonlinear Incidence and Horizontal Transmission." Journal of Applied Mathematics 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/204241.

Full text

Abstract:

The deterministic pine wilt model with vital dynamics to determine the equilibria and their stability by considering nonlinear incidence rates with horizontal transmission is analyzed. The complete global analysis for the equilibria of the model is discussed. The explicit formula for the reproductive number is obtained and it is shown that the “disease-free” equilibrium always exists and is globally asymptotically stable wheneverR0≤1. Furthermore, the disease persists at an “endemic” level when the reproductive number exceeds unity.

APA, Harvard, Vancouver, ISO, and other styles

37

STRUCHINER, CLAUDIO J., ROBERT C. BRUNET, M. ELIZABETH HALLORAN, EDUARDO MASSAD, and RAYMUNDO S. AZEVEDO-NETO. "ON THE USE OF STATE-SPACE MODELS FOR THE EVALUATION OF HEALTH INTERVENTIONS." Journal of Biological Systems 03, no. 03 (September 1995): 851–65. http://dx.doi.org/10.1142/s0218339095000770.

Full text

Abstract:

Health intervention programs, such as vaccination, can be evaluated by comparing incidence rates of infection between unprotected and protected individuals in a population. Incidence rate ratios are usually estimated by following up on time a control and treated groups in order to collect information on person-time and cases in each group, or using the Cox model. This approach can be expensive and time consuming. An alternative approach is to use prevalence data to reconstitute past incidence. Current-status data are readily available or easily gathered and can be used to estimate incidence rates. This can only be achieved, however, under certain assumptions of time homogeneity and irreversibility of the outcome of interest. We discuss a simple transmission model appropriate to evaluate health interventions that confer long term protection and expand on previous statistical procedures to estimate the relevant parameters. Nonlinear nonormal state-space models allow for the estimation of incidence rates of infection which vary with age under age-dependent differential mortality.

APA, Harvard, Vancouver, ISO, and other styles

38

Jin, Li, Yunxian Dai, Yu Xiao, and Yiping Lin. "RANK-ONE CHAOS IN A DELAYED SIR EPIDEMIC MODEL WITH NONLINEAR INCIDENCE AND TREATMENT RATES." Journal of Applied Analysis & Computation 11, no. 4 (2021): 1779–801. http://dx.doi.org/10.11948/20200190.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Wang, Jinliang, and Xianning Liu. "Modeling diseases with latency and nonlinear incidence rates: global dynamics of a multi-group model." Mathematical Methods in the Applied Sciences 39, no. 8 (August 26, 2015): 1964–76. http://dx.doi.org/10.1002/mma.3613.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Zhang, Hong, Juan Xia, and Paul Georgescu. "Multigroup deterministic and stochasticSEIRIepidemic models with nonlinear incidence rates and distributed delays: A stability analysis." Mathematical Methods in the Applied Sciences 40, no. 18 (June 13, 2017): 6254–75. http://dx.doi.org/10.1002/mma.4453.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

El Koufi, Amine. "Nonlinear Stochastic SIS Epidemic Model Incorporating Lévy Process." Complexity 2022 (April 22, 2022): 1–13. http://dx.doi.org/10.1155/2022/8093696.

Full text

Abstract:

In this work, we study a stochastic SIS epidemic model with Lévy jumps and nonlinear incidence rates. Firstly, we present our proposed model and its parameters. We establish sufficient conditions for the extinction and persistence of the disease in the population using some stochastic analysis background. We illustrate our theoretical results by numerical simulations. We conclude that the white noise and Lévy jump influence the transmission of the epidemic.

APA, Harvard, Vancouver, ISO, and other styles

42

Wang, Lei, Zhidong Teng, Tingting Tang, and Zhiming Li. "Threshold Dynamics in Stochastic SIRS Epidemic Models with Nonlinear Incidence and Vaccination." Computational and Mathematical Methods in Medicine 2017 (2017): 1–20. http://dx.doi.org/10.1155/2017/7294761.

Full text

Abstract:

In this paper, the dynamical behaviors for a stochastic SIRS epidemic model with nonlinear incidence and vaccination are investigated. In the models, the disease transmission coefficient and the removal rates are all affected by noise. Some new basic properties of the models are found. Applying these properties, we establish a series of new threshold conditions on the stochastically exponential extinction, stochastic persistence, and permanence in the mean of the disease with probability one for the models. Furthermore, we obtain a sufficient condition on the existence of unique stationary distribution for the model. Finally, a series of numerical examples are introduced to illustrate our main theoretical results and some conjectures are further proposed.

APA, Harvard, Vancouver, ISO, and other styles

43

Yang, Junyuan, Xiaoxia Li, and Fengqin Zhang. "Global dynamics of a heroin epidemic model with age structure and nonlinear incidence." International Journal of Biomathematics 09, no. 03 (February 25, 2016): 1650033. http://dx.doi.org/10.1142/s1793524516500339.

Full text

Abstract:

A heroin model with nonlinear incidence rate and age structure is investigated. The basic reproduction number is determined whether or not a heroin epidemic breaks out. By employing the Lyapunov functionals, the drug-free equilibrium is globally asymptotically stable if [Formula: see text]; while the drug spread equilibrium is also globally asymptotically stable if [Formula: see text]. Our results imply that improving detected rates and drawing up the efficient prevention play more important role than increasing the treatment for drug users.

APA, Harvard, Vancouver, ISO, and other styles

44

Zhang, Hong, Juan Xia, and Paul Georgescu. "Stability analyses of deterministic and stochastic SEIRI epidemic models with nonlinear incidence rates and distributed delay." Nonlinear Analysis: Modelling and Control 2017, no. 1 (December 27, 2016): 64–83. http://dx.doi.org/10.15388/na.2017.1.5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Khan, Ihsan Ullah, Muhammad Qasim, Amine El Koufi, and Hafiz Ullah. "The Stability Analysis and Transmission Dynamics of the SIR Model with Nonlinear Recovery and Incidence Rates." Mathematical Problems in Engineering 2022 (September 20, 2022): 1–10. http://dx.doi.org/10.1155/2022/6962160.

Full text

Abstract:

In the present paper, the SIR model with nonlinear recovery and Monod type equation as incidence rates is proposed and analyzed. The expression for basic reproduction number is obtained which plays a main role in the stability of disease-free and endemic equilibria. The nonstandard finite difference (NSFD) scheme is constructed for the model and the denominator function is chosen such that the suggested scheme ensures solutions boundedness. It is shown that the NSFD scheme does not depend on the step size and gives better results in all respects. To prove the local stability of disease-free equilibrium point, the Jacobean method is used; however, Schur–Cohn conditions are applied to discuss the local stability of the endemic equilibrium point for the discrete NSFD scheme. The Enatsu criterion and Lyapunov function are employed to prove the global stability of disease-free and endemic equilibria. Numerical simulations are also presented to discuss the advantages of NSFD scheme as well as to strengthen the theoretical results. Numerical simulations specify that the NSFD scheme preserves the important properties of the continuous model. Consequently, they can produce estimates which are entirely according to the solutions of the model.

APA, Harvard, Vancouver, ISO, and other styles

46

Enatsu, Yoichi, Yukihiko Nakata, Yoshiaki Muroya, Giuseppe Izzo, and Antonia Vecchio. "Global dynamics of difference equations for SIR epidemic models with a class of nonlinear incidence rates." Journal of Difference Equations and Applications 18, no. 7 (July 2012): 1163–81. http://dx.doi.org/10.1080/10236198.2011.555405.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Li, Gui-Hua, and Yong-Xin Zhang. "Dynamic behaviors of a modified SIR model in epidemic diseases using nonlinear incidence and recovery rates." PLOS ONE 12, no. 4 (April 20, 2017): e0175789. http://dx.doi.org/10.1371/journal.pone.0175789.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Enatsu, Yoichi, Yukihiko Nakata, and Yoshiaki Muroya. "Global stability of sirs epidemic models with a class of nonlinear incidence rates and distributed delays." Acta Mathematica Scientia 32, no. 3 (May 2012): 851–65. http://dx.doi.org/10.1016/s0252-9602(12)60066-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Enatsu, Yoichi, Eleonora Messina, Yukihiko Nakata, Yoshiaki Muroya, Elvira Russo, and Antonia Vecchio. "Global dynamics of a delayed SIRS epidemic model with a wide class of nonlinear incidence rates." Journal of Applied Mathematics and Computing 39, no. 1-2 (September 11, 2011): 15–34. http://dx.doi.org/10.1007/s12190-011-0507-y.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Sun, Guiquan, Zhen Jin, Quan-Xing Liu, and Li Li. "Pattern formation in a spatialS–Imodel with non-linear incidence rates." Journal of Statistical Mechanics: Theory and Experiment 2007, no. 11 (November 27, 2007): P11011. http://dx.doi.org/10.1088/1742-5468/2007/11/p11011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!