Sufficient and necessary condition for the permanence of periodic predator-prey system.
Sul problema della biforcazione generalizzata di Hopf per sistemi periodici
Sulla stabilità asintotica ed instabilità
Sur la stabilité asymptotique des solutions d'un système d'équations différentielles
Sur le calcul de la partie principale d'un tore de bifurcation pour un système différentiel périodique
Sur une synthèse pratique de deux méthodes qualitatives d'étude des équations différentielles
Surstabilité pour une équation différentielle analytique en dimension un
En rapport avec le problème du retard a la bifurcation, la notion de solution surstable est définie pour une famille d’équations différentielles analytiques avec un petit paramètre. Un théorème d’existence des solutions surstables est démontré pour des valeurs exceptionnelles d’un paramètre de contrôle. L’outil principal de la démonstration est un théorème de sommation qui constitue une généralisation d’un résultat de A. I. Neishtadt.
Switched modified function projective synchronization between two complex nonlinear hyperchaotic systems based on adaptive control and parameter identification
This paper investigates adaptive switched modified function projective synchronization between two complex nonlinear hyperchaotic systems with unknown parameters. Based on adaptive control and parameter identification, corresponding adaptive controllers with appropriate parameter update laws are constructed to achieve switched modified function projective synchronization between two different complex nonlinear hyperchaotic systems and to estimate the unknown system parameters. A numerical simulation...
Symmetry in a certain simply perturbed Hamiltonian system
Synchronization of fractional chaotic complex networks with delays
The synchronization of fractional-order complex networks with delay is investigated in this paper. By constructing a novel Lyapunov-Krasovskii function and taking integer derivative instead of fractional derivative of the function, a sufficient criterion is obtained in the form of linear matrix inequalities to realize synchronizing complex dynamical networks. Finally, a numerical example is shown to illustrate the feasibility and effectiveness of the proposed method.
Synchronization of fractional-order chaotic systems with multiple delays by a new approach
In this paper, we propose a new approach of designing a controller and an update rule of unknown parameters for synchronizing fractional-order system with multiple delays and prove the correctness of the approach according to the fractional Lyapunov stable theorem. Based on the proposed approach, synchronizing fractional delayed chaotic system with and without unknown parameters is realized. Numerical simulations are carried out to confirm the effectiveness of the approach.
Synchronization of nonautonomous dynamical systems.
Synchronization of two coupled Hindmarsh-Rose neurons
This paper is concerned with synchronization of two coupled Hind-marsh-Rose (HR) neurons. Two synchronization criteria are derived by using nonlinear feedback control and linear feedback control, respectively. A synchronization criterion for FitzHugh-Nagumo (FHN) neurons is derived as the application of control method of this paper. Compared with some existing synchronization results for chaotic systems, the contribution of this paper is that feedback gains are only dependent on system parameters,...
Szegő's first limit theorem in terms of a realization of a continuous-time time-varying systems
It is shown that the limit in an abstract version of Szegő's limit theorem can be expressed in terms of the antistable dynamics of the system. When the system dynamics are regular, it is shown that the limit equals the difference between the antistable Lyapunov exponents of the system and those of its inverse. In the general case, the elements of the dichotomy spectrum give lower and upper bounds.
Teorie deterministického chaosu a některé její aplikace (1. část)
Teorie deterministického chaosu a některé její aplikace (2. část)
Terminal value problems for first and second order nonlinear equations on time scales.
The analysis of epidemic network model with infectious force in latent and infected period.
The asymptotic properties of solutions of differential system of the form , in some neighbourhood of a singular point
The bifurcation set for the resonance problem.