Optimal control is one of the most popular decision-making tools recently in many researches and in many areas. The Lorenz-R<span style="FONT-FAMILY:;COLOR: #4f4f4f" font-size:14px;white-space:normal;back...Optimal control is one of the most popular decision-making tools recently in many researches and in many areas. The Lorenz-R<span style="FONT-FAMILY:;COLOR: #4f4f4f" font-size:14px;white-space:normal;background-color:#ffffff;?=""><span style="color:#4F4F4F;font-family:"font-size:14px;white-space:normal;background-color:#FFFFFF;">ö</span></span>ssler model is one of the interesting models because of the idea of consolidation of the two models<span style="font-family:Verdana;">:</span><span style="font-family:Verdana;"> Lorenz and <span style="white-space:nowrap;"><span style="color:#4F4F4F;font-family:"font-size:14px;white-space:normal;background-color:#FFFFFF;">ö</span></span><span style="FONT-FAMILY:;COLOR: #4f4f4f" font-size:14px;white-space:normal;background-color:#ffffff;?=""></span>ssler. This paper discusses the Lorenz-R<span style="FONT-FAMILY:;COLOR: #4f4f4f" font-size:14px;white-space:normal;background-color:#ffffff;?=""><span style="color:#4F4F4F;font-family:"font-size:14px;white-space:normal;background-color:#FFFFFF;">ö</span></span>ssler model from the bifurcation phenomena and the optimal control problem (OCP). The bifurcation property at the system equilibrium <img alt="" src="Edit_128925fa-e315-4db4-b9e4-9cd999342cb9.bmp" /> </span><span style="font-family:Verdana;">is studied and it is found that saddle-node and Hopf bifurcations can be holed under some conditions on the parameters. Also, the problem of the optimal control of Lorenz-R<span style="FONT-FAMILY:;COLOR: #4f4f4f" font-size:14px;white-space:normal;background-color:#ffffff;?=""><span style="color:#4F4F4F;font-family:"font-size:14px;white-space:normal;background-color:#FFFFFF;">ö</span></span>ssler model is discussed and </span><span style="font-family:Verdana;">it </span><span style="font-family:Verdana;">u</span><span style="font-family:Verdana;">ses</span><span style="font-family:Verdana;"> the Pontryagin’s Maximum Principle (PMP) to derive the optimal control inputs that achieve the optimal trajectory. Numerical 展开更多
This paper is devoted to study the problem of stability, chaos behavior and parameters estimation of the habitat destruction model with three-species (prey, predator and top-predator). The mathematical formula of the ...This paper is devoted to study the problem of stability, chaos behavior and parameters estimation of the habitat destruction model with three-species (prey, predator and top-predator). The mathematical formula of the model and its proposed interactions are presented. Some important special solutions of systems are discussed. The stationary states of the model are derived. Local stability conditions for the stationary states are derived. Furthermore, the chaotic behavior of the model is discussed and presented graphically. Using Liapunov stability technique, the dynamic estimators of the unknown probabilities and their updating rules are derived. It is found that, the control laws are non-linear functions of the species densities. Numerical illustrative examples are carried out and presented graphically.展开更多
In this paper, the problem of chaos, stability and estimation of unknown parameters of the stochastic lattice gas for prey-predator model with pair-approximation is studied. The result shows that this dynamical system...In this paper, the problem of chaos, stability and estimation of unknown parameters of the stochastic lattice gas for prey-predator model with pair-approximation is studied. The result shows that this dynamical system exhibits an oscillatory behavior of the population densities of prey and predator. Using Liapunov stability technique, the estimators of the unknown probabilities are derived, and also the updating rules for stability around its steady states are derived. Furthermore the feedback control law has been as non-linear functions of the population densities. Numerical simulation study is presented graphically.展开更多
文摘Optimal control is one of the most popular decision-making tools recently in many researches and in many areas. The Lorenz-R<span style="FONT-FAMILY:;COLOR: #4f4f4f" font-size:14px;white-space:normal;background-color:#ffffff;?=""><span style="color:#4F4F4F;font-family:"font-size:14px;white-space:normal;background-color:#FFFFFF;">ö</span></span>ssler model is one of the interesting models because of the idea of consolidation of the two models<span style="font-family:Verdana;">:</span><span style="font-family:Verdana;"> Lorenz and <span style="white-space:nowrap;"><span style="color:#4F4F4F;font-family:"font-size:14px;white-space:normal;background-color:#FFFFFF;">ö</span></span><span style="FONT-FAMILY:;COLOR: #4f4f4f" font-size:14px;white-space:normal;background-color:#ffffff;?=""></span>ssler. This paper discusses the Lorenz-R<span style="FONT-FAMILY:;COLOR: #4f4f4f" font-size:14px;white-space:normal;background-color:#ffffff;?=""><span style="color:#4F4F4F;font-family:"font-size:14px;white-space:normal;background-color:#FFFFFF;">ö</span></span>ssler model from the bifurcation phenomena and the optimal control problem (OCP). The bifurcation property at the system equilibrium <img alt="" src="Edit_128925fa-e315-4db4-b9e4-9cd999342cb9.bmp" /> </span><span style="font-family:Verdana;">is studied and it is found that saddle-node and Hopf bifurcations can be holed under some conditions on the parameters. Also, the problem of the optimal control of Lorenz-R<span style="FONT-FAMILY:;COLOR: #4f4f4f" font-size:14px;white-space:normal;background-color:#ffffff;?=""><span style="color:#4F4F4F;font-family:"font-size:14px;white-space:normal;background-color:#FFFFFF;">ö</span></span>ssler model is discussed and </span><span style="font-family:Verdana;">it </span><span style="font-family:Verdana;">u</span><span style="font-family:Verdana;">ses</span><span style="font-family:Verdana;"> the Pontryagin’s Maximum Principle (PMP) to derive the optimal control inputs that achieve the optimal trajectory. Numerical
文摘This paper is devoted to study the problem of stability, chaos behavior and parameters estimation of the habitat destruction model with three-species (prey, predator and top-predator). The mathematical formula of the model and its proposed interactions are presented. Some important special solutions of systems are discussed. The stationary states of the model are derived. Local stability conditions for the stationary states are derived. Furthermore, the chaotic behavior of the model is discussed and presented graphically. Using Liapunov stability technique, the dynamic estimators of the unknown probabilities and their updating rules are derived. It is found that, the control laws are non-linear functions of the species densities. Numerical illustrative examples are carried out and presented graphically.
文摘In this paper, the problem of chaos, stability and estimation of unknown parameters of the stochastic lattice gas for prey-predator model with pair-approximation is studied. The result shows that this dynamical system exhibits an oscillatory behavior of the population densities of prey and predator. Using Liapunov stability technique, the estimators of the unknown probabilities are derived, and also the updating rules for stability around its steady states are derived. Furthermore the feedback control law has been as non-linear functions of the population densities. Numerical simulation study is presented graphically.
