Results 21 to 30 of about 210 (144)
Global periodic solutions in a plankton-fish interaction model with toxication delay
Nonlinear Engineering, 2018 In this paper, a plankton-fish interaction model is proposed and analyzed with the help of delay differential equations. Firstly, the elementary dynamical properties of the system in the absence of time delay is discussed.
Sharma Amit
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Mathematical modelling of the effects of peer-educators’ campaign on the dynamics of HIV/AIDS in Rwanda [PDF]
, 2019 In this paper, we analyse the effects of peer-educator’s campaign on the dynamics of HIV. We present a sex-structured model for heterosexual transmission of HIV/AIDS in a community. The model is formulated using integro-differential equations, which help
Ntaganda, Jean Marie +2 more
core +1 more source
An eco-epidemiological model with predator switching behavior
Computational and Mathematical Biophysics, 2023 Switching mechanism is adopted by predator populations when they are provided with two types of prey: susceptible and infected. In this study, we propose a modification of an eco-epidemiological model with the predator switching mechanism.
Tripathi Deepak, Singh Anuraj
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Open Mathematics, 2019 This work is mainly concerned with the exponential stability of time-changed stochastic functional differential equations with Markovian switching. By expanding the time-changed Itô formula and the Razumikhin theorem, we obtain the exponential stability ...
Zhang Xiaozhi, Yuan Chenggui
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Almost periodic solution of a discrete competitive system with delays and feedback controls
Open Mathematics, 2019 A discrete nonlinear almost periodic multispecies competitive system with delays and feedback controls is proposed and investigated. We obtain sufficient conditions to ensure the permanence of the system.
Xue Yalong, Xie Xiangdong, Lin Qifa
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A mathematical model to study the spread of COVID-19 and its control in India
Computational and Mathematical Biophysics, 2023 In this article, a nonlinear mathematical model is proposed and analyzed to study the spread of coronavirus disease (COVID-19) and its control. Due to sudden emergence of a peculiar kind of infection, no vaccines were available, and therefore, the ...
Naresh Ram +3 more
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Stability properties of a Cournot-type oligopoly model with time delay
Annals of the West University of Timisoara: Mathematics and Computer Science, 2023 The paper studies a Cournot game involving n private firms, where the firms’ interactions are analyzed in a discrete-time setting with time delay. The past production levels of other private firms have an impact on the production levels of each private ...
Culda Loredana Camelia
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Gene Content and Distribution in the Nuclear Genome of Fragaria vesca
The Plant Genome, Volume 2, Issue 1, March 2009., 2009 Thirty fosmids were randomly selected from a library of Fragaria vesca subsp. americana (cv. Pawtuckaway) DNA. These fosmid clones were individually sheared, and ∼4‐ to 5‐kb fragments were subcloned. Subclones on a single 384‐well plate were sequenced bidirectionally for each fosmid. Assembly of these data yielded 12 fosmid inserts completely sequenced,
Ana Clara Pontaroli +7 more
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Lyapunov stability solutions of fractional integrodifferential equations
International Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 47, Page 2503-2507, 2004., 2004 Lyapunov stability and asymptotic stability conditions for the solutions of the fractional integrodiffrential equations x(α)(t)=f(t,x(t))+∫t0tk(t,s,x(s))ds, 0 < α ≤ 1, with the initial condition x(α−1)(t0) = x0, have been investigated. Our methods are applications of Gronwall′s lemma and Schwartz inequality.
Shaher Momani, Samir Hadid
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ℋ∞ constant gain state feedback stabilization of stochastic hybrid systems with Wiener process
Mathematical Problems in Engineering, Volume 2004, Issue 4, Page 333-345, 2004., 2004 This paper considers the stabilization problem of the class of continuous‐time linear stochastic hybrid systems with Wiener process. The ℋ∞ state feedback stabilization problem is treated. A state feedback controller with constant gain that does not require access to the system mode is designed.
E. K. Boukas, N. F. Al-Muthairi
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