Results 71 to 80 of about 933 (103)

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

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

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

(ω, c)- Pseudo almost periodic distributions

open access: yesNonautonomous Dynamical Systems, 2020
The paper is a study of the (w, c) −pseudo almost periodicity in the setting of Sobolev-Schwartz distributions. We introduce the space of (w, c) −pseudo almost periodic distributions and give their principal properties.
Khalladi Mohammed Taha   +1 more
doaj   +1 more source

Dynamics of a Mosquito Egg-Larvae Model with Seasonality. [PDF]

open access: yesBull Math Biol, 2023
Bellver-Arnau J, Margheri A, Rebelo C.
europepmc   +1 more source

Ambrosetti–Prodi Periodic Problem Under Local Coercivity Conditions

open access: yesAdvanced Nonlinear Studies, 2018
In this paper we focus on the periodic boundary value problem associated with the Liénard differential equation x′′+f⁢(x)⁢x′+g⁢(t,x)=s{x^{\prime\prime}+f(x)x^{\prime}+g(t,x)=s}, where s is a real parameter, f and g are continuous functions and g is T ...
Sovrano Elisa, Zanolin Fabio
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

Non-hyperbolic P-Invariant Closed Characteristics on Partially Symmetric Compact Convex Hypersurfaces

open access: yesAdvanced Nonlinear Studies, 2018
Let n≥2{n\geq 2} be an integer, P=diag⁢(-In-κ,Iκ,-In-κ,Iκ){P=\mathrm{diag}(-I_{n-\kappa},I_{\kappa},-I_{n-\kappa},I_{\kappa})} for some integer κ∈[0,n]{\kappa\in[0,n]}, and let Σ⊂ℝ2⁢n{\Sigma\subset{\mathbb{R}}^{2n}} be a partially symmetric compact ...
Liu Hui, Zhu Gaosheng
doaj   +1 more source

Periodic Impact Motions at Resonance of a Particle Bouncing on Spheres and Cylinders

open access: yesAdvanced Nonlinear Studies, 2017
We investigate the existence of periodic trajectories of a particle, subject to a central force, which can hit a sphere or a cylinder. We will also provide a Landesman–Lazer-type condition in the case of a nonlinearity satisfying a double resonance ...
Sfecci Andrea
doaj   +1 more source

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