Results 161 to 170 of about 1,013 (204)

Bifurcations of phase portraits and chaotic behaviors of the (2+1)-dimensional double-chain DNA system with beta derivative: A qualitative approach. [PDF]

Heliyon
Kumar D.
europepmc   +1 more source

A Model for the Coexistence of Competing Mechanisms for Ca 2 + Oscillations in T-lymphocytes. [PDF]

Bull Math Biol
Castaneda Ruan P, Benson JC, Trebak M, Kirk V, Sneyd J.   +4 more
europepmc   +1 more source

Analyzing and Controlling chaos phenomena in fractional chaotic supply chain models. [PDF]

Heliyon
Johansyah MD, Sambas A, Zheng S, Qureshi S, Abed-Elhameed TM, Vaidyanathan S.   +5 more
europepmc   +1 more source

Resilience assessment in complex natural systems. [PDF]

Proc Biol Sci
Sguotti C, Vasilakopoulos P, Tzanatos E, Frelat R.   +3 more
europepmc   +1 more source

Nonlinear aeroelastic modelling and analysis of a geometrically nonlinear wing with combined unsteady sectional and lifting line aerodynamics. [PDF]

Nonlinear Dyn
Jayatilake S, Lowenberg M, Woods BKS, Titurus B.   +3 more
europepmc   +1 more source

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Neimark‐Sacker bifurcation of a fourth order difference equation

Mathematical Methods in the Applied Sciences, 2018
In this article, we study stability and bifurcation of a fourth order rational difference equation. We give condition for local stability, and we show that the equation undergoes a Neimark‐Sacker bifurcation. Moreover, we consider the direction of the Neimark‐Sacker bifurcation. Finally, we numerically validate our analytical results.
Marwan Aloqeili
exaly   +3 more sources

Neimark–Sacker bifurcation for periodic delay differential equations

Nonlinear Analysis: Theory, Methods & Applications, 2005
The paper considers nonautonomous delay differential equations of the form \[ x'(t)=\gamma(a(t)x(t)+f(t,x(t-1))), \] where \(a\) and \(f\) are \(1-\)periodic with respect to \(t\). The aim is to study Neimark-Sacker bifurcations. The method employed is based on characteristic equations and Floquet exponents.
Röst, Gergely
openaire   +4 more sources

Simplest normal forms of generalized Neimark-Sacker bifurcation

Transactions of Tianjin University, 2009
The normal forms of generalized Neimark-Sacker bifurcation are extensively studied using normal form theory of dynamic system. It is well known that if the normal forms of the generalized Neimark-Sacker bifurcation are expressed in polar coordinates, then all odd order terms must, in general, remain in the normal forms. In this paper, five theorems are
Yumei Ding, Qichang Zhang, Zhang Qichang   +2 more
exaly   +2 more sources

Neimark–Sacker Bifurcation Analysis and 0–1 Chaos Test of an Interactions Model between Industrial Production and Environmental Quality in a Closed Area

Sustainability, 2015
A discrete-time model is presented to describe the complex interaction between industrial production and environmental quality in a closed area. Its Neimark–Sacker bifurcation and chaos are discussed based on Wen’s explicit Neimark–Sacker bifurcation ...
Baogui Xin, Xin Baogui
exaly   +2 more sources

Remarks on interacting Neimark–Sacker bifurcations

Journal of Difference Equations and Applications, 2006
We study codimension-2 bifurcations of fixed points of dissipative diffeomorphisms with a pair of complex eigenvalues together with either an eigenvalue − 1 or another such a pair. In the previous studies only cubic normal forms were considered. However, in some cases the unfolding requires higher-order terms and these are investigated here.
Yu. A. Kuznetsov, H. G. E. Meijer
openaire   +3 more sources