Results 81 to 90 of about 933 (103)

Boundary value problems for integro-differential and singular higher-order differential equations

open access: yesOpen Mathematics
We investigate third-order strongly nonlinear differential equations of the type (Φ(k(t)u″(t)))′=f(t,u(t),u′(t),u″(t)),a.e. on[0,T],\left(\Phi \left(k\left(t){u}^{^{\prime\prime} }\left(t)))^{\prime} =f\left(t,u\left(t),u^{\prime} \left(t),{u}^{^{\prime ...
Anceschi Francesca   +3 more
doaj   +1 more source

Periodic impulsive fractional differential equations

open access: yesAdvances in Nonlinear Analysis, 2017
This paper deals with the existence of periodic solutions of fractional differential equations with periodic impulses. The first part of the paper is devoted to the uniqueness, existence and asymptotic stability results for periodic solutions of ...
Fečkan Michal, Wang Jin Rong
doaj   +1 more source

One-dimensional singular problems involving the p-Laplacian and nonlinearities indefinite in sign

open access: yesAdvances in Nonlinear Analysis, 2016
Let Ω be a bounded open interval, let p>1${p>1}$ and γ>0${\gamma>0}$, and let m:Ω→ℝ${m:\Omega\rightarrow\mathbb{R}}$ be a function that may change sign in Ω.
Kaufmann Uriel, Medri Iván
doaj   +1 more source

Branches of Forced Oscillations Induced by a Delayed Periodic Force

open access: yesAdvanced Nonlinear Studies, 2019
We study global continuation properties of the set of T-periodic solutions of parameterized second order delay differential equations with constant time lag on smooth manifolds. We apply our results to get multiplicity of T-periodic solutions.
Calamai Alessandro   +2 more
doaj   +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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