Results 31 to 40 of about 83,325 (264)
Cumhuriyet Science Journal, 2022 This article is about the dynamics of a discrete-time prey-predator system with Allee effect and immigration parameter on prey population. Particularly, we study existence and local asymptotic stability of the unique positive fixed point.
Feda İlhan, Figen Kangalgil
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Stability and nonlinear dynamics in a Solow model with pollution
Nonlinear Analysis, 2014 In this paper, we introduce a time-to-build technology in a Solow model with pollution. We show that Hopf bifurcations occur as the delay passes through critical values.
Massimiliano Ferrara +2 more
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Geometry applications of irreducible representations of Lie Groups [PDF]
, 2010 In this note we give proofs of the following three algebraic facts which have applications in the theory of holonomy groups and homogeneous spaces: Any irreducibly acting connected subgroup $G \subset Gl(n,\rr)$ is closed.
Di Scala, Antonio Jose' +2 more
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Evaluation of the ADM mass and center of mass via the Ricci tensor
, 2015 We prove directly without using a density theorem that (i) the ADM mass defined in the usual way on an asymptotically flat manifold is equal to the mass defined intrinsically using Ricci tensor; (ii) the Hamiltonian formulation of center of mass and the ...
Miao, Pengzi, Tam, Luen-Fai
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The Fujiki class and positive degree maps [PDF]
, 2015 We show that a map between complex-analytic manifolds, at least one of which is in the Fujiki class, is a biholomorphism under a natural condition on the second cohomologies.
Bharali, Gautam +2 more
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Stability and Hopf Bifurcation of an n-Neuron Cohen-Grossberg Neural Network with Time Delays
Journal of Applied Mathematics, 2014 A Cohen-Grossberg neural network with discrete delays is investigated in this paper. Sufficient conditions for the existence of local Hopf bifurcation are obtained by analyzing the distribution of roots of characteristic equation. Moreover, the direction
Qiming Liu, Sumin Yang
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Michaelis-Menten-Type Prey Harvesting in Discrete Modified Leslie-Gower Predator-Prey Model
Journal of Function Spaces, 2022 A discrete-time Michaelis-Menten-type prey harvesting is discussed in this paper, in the modified Leslie-Gower predator-prey model. Detailed analysis of the topology of nonnegative interior fixed points is given, including their existence and stability ...
M. Saqib Khan +3 more
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Journal of Applied Mathematics, 2015 A reaction-diffusion system coupled by two equations subject to homogeneous Neumann boundary condition on one-dimensional spatial domain (0,lπ) with l>0 is considered.
Cun-Hua Zhang, Xiang-Ping Yan
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Bifurcation analysis of a three-species ecological system with time delay and harvesting
Advances in Difference Equations, 2017 This paper deals with a three-species ecological system with time delay and harvesting. Sufficient conditions guaranteeing the local stability and the occurrence of Hopf bifurcation for the system are obtained. Further, the properties of Hopf bifurcation
Zizhen Zhang, Aying Wan
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The Stability Analysis of the Shimizu–Morioka [PDF]
Kirkuk Journal of Science, 2011 In this work, we study new system with a rich structure (the Shimizu-Morioka system), which is exhibiting the Lorenz-like dynamics. Where the dot denotes the system obtained a Hopf bifurcation (Supercritical and subcritical) for ...
Rizgar H. Salih
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