Results 81 to 90 of about 948 (103)

On the existence of periodic solution of perturbed generalized Li\'enard equations

open access: yes, 2006
Under conditions of Levinson-Smith type, we prove the existence of a $\tau$-periodic solution for the perturbed generalized Li\'enard equation u''+\phi(u,u')u'+\psi(u)=\epsilon\omega(\frac{t}{\tau},u,u') with periodic forcing term.
Boussaada, Islam, Chouikha, A. Raouf
core   +1 more source

High Multiplicity and Chaos for an Indefinite Problem Arising from Genetic Models

open access: yesAdvanced Nonlinear Studies, 2020
We deal with the periodic boundary value problem associated with the parameter-dependent second-order nonlinear differential ...
Boscaggin Alberto   +2 more
doaj   +1 more source

Almost periodic solution of a discrete competitive system with delays and feedback controls

open access: yesOpen Mathematics, 2019
A discrete nonlinear almost periodic multispecies competitive system with delays and feedback controls is proposed and investigated. We obtain sufficient conditions to ensure the permanence of the system.
Xue Yalong, Xie Xiangdong, Lin Qifa
doaj   +1 more source

Hopf bifurcation in a dynamic IS-LM model with time delay [PDF]

open access: yes
The paper investigates the impact of delayed tax revenues on the fiscal policy out-comes. Choosing the delay as a bifurcation parameter we study the direction and the stability of the bifurcating periodic solutions. We show when the system is stable with
Chilarescu, Constantin   +2 more
core   +1 more source

An improved Mickens’ solution for nonlinear vibrations

open access: yesAlexandria Engineering Journal
The Duffing equation and other nonlinear equations of motion of nonlinear vibrations are widely applied in the fields of engineering and science, especially mechanical and electrical engineering.
M.M. Ayub Hossain, B.M. Ikramul Haque
doaj   +1 more source

Neurologically Motivated Coupling Functions in Models of Motor Coordination. [PDF]

open access: yesSIAM J Appl Dyn Syst, 2020
Słowiński P   +2 more
europepmc   +1 more source

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