scholarly journals Control Barrier Function-Based Quadratic Programs Introduce Undesirable Asymptotically Stable Equilibria

2021 ◽  
Vol 5 (2) ◽  
pp. 731-736
Author(s):  
Matheus F. Reis ◽  
A. Pedro Aguiar ◽  
Paulo Tabuada
2021 ◽  
Vol 31 (03) ◽  
pp. 2150050
Author(s):  
Demou Luo ◽  
Qiru Wang

Of concern is the global dynamics of a two-species Holling-II amensalism system with nonlinear growth rate. The existence and stability of trivial equilibrium, semi-trivial equilibria, interior equilibria and infinite singularity are studied. Under different parameters, there exist two stable equilibria which means that this model is not always globally asymptotically stable. Together with the existence of all possible equilibria and their stability, saddle connection and close orbits, we derive some conditions for transcritical bifurcation and saddle-node bifurcation. Furthermore, the global dynamics of the model is performed. Next, we incorporate Allee effect on the first species and offer a new analysis of equilibria and bifurcation discussion of the model. Finally, several numerical examples are performed to verify our theoretical results.


2017 ◽  
Vol 62 (8) ◽  
pp. 3861-3876 ◽  
Author(s):  
Aaron D. Ames ◽  
Xiangru Xu ◽  
Jessy W. Grizzle ◽  
Paulo Tabuada

2006 ◽  
Vol 14 (3) ◽  
pp. 385-398 ◽  
Author(s):  
M. W. Hirsch ◽  
◽  
Hal L. Smith ◽  

2006 ◽  
Vol 16 (06) ◽  
pp. 1855-1863 ◽  
Author(s):  
SHABAN ALY

In this paper we formulate a delayed predator-prey system in two patches in which the per capita migration rate of each species is influenced only by its own density, i.e. there is no response to the density of the other and the growth rate of the predator depends on the prey that was available in the past. If the equilibrium point lies in the Allée effect zone and when the diffusion is present only, we show that at a critical value of the bifurcation parameter the system undergoes a Turing bifurcation, patterns emerge, the spatially homogeneous equilibrium loses its stability and two new spatially non-constant stable equilibria emerge which are asymptotically stable. When the delay is present only, the increase of delay destabilizes the system and causes the occurrence of periodic oscillations, Andronov–Hopf bifurcation. For the full general model (with both diffusion and delay) if the bifurcation parameters are increased through critical values of diffusion and delay the two new spatially nonconstant stationary solutions lose their stability by Hopf bifurcation.


1997 ◽  
Vol 08 (03) ◽  
pp. 295-300 ◽  
Author(s):  
Anke Meyer-Bäse

We establish robustness stability results for a specific type of artificial neural networks for associative memories under parameter perturbations and determine conditions that ensure the existence of asymptotically stable equilibria of the perturbed neural system that are near the asymptotically stable equilibria of the original unperturbed neural network. The proposed stability analysis tool is the sliding mode control and it facilitates the analysis by considering only a reduced-order system instead of the original one and time-dependent external stimuli.


Author(s):  
Tomás Caraballo ◽  
Peter E Kloeden

It is shown that the synchronization of dissipative systems persists when they are disturbed by additive noise, no matter how large the intensity of the noise, provided asymptotically stable stationary-stochastic solutions are used instead of asymptotically stable equilibria.


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