Results 81 to 90 of about 1,832 (165)
Relative frequencies in multitype branching processes
, 2009 This paper considers the relative frequencies of distinct types of individuals in multitype branching processes. We prove that the frequencies are asymptotically multivariate normal when the initial number of ancestors is large and the time of ...
Yakovlev, Andrei Y., Yanev, Nikolay M.
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Dynamic model of COVID-19 and citizens reaction using fractional derivative
Alexandria Engineering Journal, 2021 This paper presents dynamic model of COVID-19 and citizens reaction from a fraction of the population in Nigeria using fractional derivative. We consider the reported cases from February to June 2020 using fractional derivative. The Stability analysis of
R.B. Ogunrinde +4 more
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On positive solutions and the Omega limit set for a class of delay differential equations
, 2012 This paper studies the positive solutions of a class of delay differential equations with two delays. These equations originate from the modeling of hematopoietic cell populations. We give a sufficient condition on the initial function for $t\leq 0$ such
B. Dorizzi +15 more
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Advances in Nonlinear AnalysisThis study proposed and analyzed a vector-borne reaction–diffusion–advection model with vector-bias mechanism and heterogeneous parameters in one-dimensional habitat.
Liu Jiaxing, Wang Jinliang
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Open Mathematics, 2018 Considering the fact that the development of low carbon economy calls for the low carbon technology sharing between interested enterprises, this paper study a stochastic differential game of low carbon technology sharing in collaborative innovation ...
Yin Shi, Li Baizhou
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Stability analysis of a host parasite model
, 2013 Host parasite models are similar to host parasitoid models except that the parasite does not necessarily kill the host. Leslie/Gower model (Leslie and Gower in Biometrika 47(3/4):219-234, 1960) played a historical role in ecology.
Ünal Ufuktepe, S. Kapçak
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A Partition Theorem for a Randomly Selected Large Population [PDF]
, 2018 We state and prove a proposition on partitioning of a randomly selected large population into stationary and non-stationary populations by using a property of stationary population identity.
Carey, James R. +1 more
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Analyzing a generalized pest-natural enemy model with nonlinear impulsive control
Open Mathematics, 2018 Due to resource limitation, nonlinear impulsive control tactics related to integrated pest management have been proposed in a generalized pest-natural enemy model, which allows us to address the effects of nonlinear pulse control on the dynamics and ...
Li Changtong, Tang Sanyi
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Permanence and global attractivity in a discrete Lotka-Volterra predator-prey model with delays
, 2014 In this paper, we deal with a discrete Lotka-Volterra predator-prey model with time-varying delays. For the general non-autonomous case, sufficient conditions which ensure the permanence and global stability of the system are obtained by using ...
Changjin Xu, Yusen Wu, Lin Lu
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On the limit configuration of four species strongly competing systems
, 2019 We analysed some qualitative properties of the limit configuration of the solutions of a reaction-diffusion system of four competing species as the competition rate tends to infinity.
Lanzara, Flavia, Montefusco, Eugenio
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