Results 51 to 60 of about 715 (147)
On variable-order hybrid FracInt Covid-19 mathematical model: optimal control approach
Arab Journal of Basic and Applied Sciences, 2023 An optimal control problem for the variable-order fractional-integer mathematical model of vaccination Covid 19 is presented in this research, where the order of the derivatives varies during the course of the time interval, becoming fractional or ...
R. G. Salama +3 more
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Does a population with the highest turnover coefficient win competition?
, 2017 We consider a discrete time competition model. Populations compete for common limited resources but they have different fertilities and mortalities rates. We compare dynamical properties of this model with its continuous counterpart.
Rudnicki, Ryszard
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A nonsmooth two-sex population model
, 2014 This paper considers a two-dimensional logistic model to study populations with two genders. The growth behavior of a population is guided by two coupled ordinary differential equations given by a non-differentiable vector field whose parameters are the ...
Garibaldi, Eduardo, Sobottka, Marcelo
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Existence and Stability of Standing Pulses in Neural Networks : I Existence
, 2003 We consider the existence of standing pulse solutions of a neural network integro-differential equation. These pulses are bistable with the zero state and may be an analogue for short term memory in the brain.
Aliprantis Charalambos +16 more
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Complex dynamics of a nonlinear discrete predator-prey system with Allee effect
Open MathematicsThe transition between strong and weak Allee effects in prey provides a simple regime shift in ecology. In this article, we study a discrete predator-prey system with Holling type II functional response and Allee effect. First, the number of fixed points
Wang Jing, Lei Ceyu
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Results in Physics, 2018 It has become a conjecture that power series like Mittag-Leffler functions and their variants naturally govern solutions to most of generalized fractional evolution models such as kinetic, diffusion or relaxation equations. Is this always true?
Emile Franc Doungmo Goufo +2 more
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Group Size Effect on the Success of Wolves Hunting [PDF]
, 2015 Social foraging shows unexpected features such as the existence of a group size threshold to accomplish a successful hunt. Above this threshold, additional individuals do not increase the probability of capturing the prey.
Coppinger, Raymond +4 more
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, 2017 In this article we investigate the semiflow properties of a class of state-dependent delay differential equations which is motivated by some models describing the dynamics of the number of adult trees in forests.
Magal, Pierre, Zhang, Zhengyang
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On the role of differential algebra in biological modeling [PDF]
, 2008 Extended abstract of an invited talk at Differential Algebra and related Computer Algebra (Catania, Italy, March 28th, 2008)International audienceDifferential algebra is an algebraic theory for studying systems of polynomial ordinary differential ...
Boulier, François
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Mathematical modeling, analysis and Markov Chain Monte Carlo simulation of Ebola epidemics
Results in Physics, 2017 Ebola virus infection is a severe infectious disease with the highest case fatality rate which become the global public health treat now. What makes the disease the worst of all is no specific effective treatment available, its dynamics is not much ...
Thomas Wetere Tulu +2 more
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