Results 31 to 40 of about 150 (59)

Levinson Theorem for Differential Equations with Piecewise Constant Argument Generalized [PDF]

open access: yes, 2015
In this work, it is presented an adaptation of an asymptotic theorem of N. Levinson of 1948, to differential equation with piecewise constant argument generalized, which were introduced by M. Akhmet in 2007.
Castillo, Samuel, Flores, Wilfred
core  

Semi-periodic solutions of difference and differential equations

open access: yes, 2012
International audienceThe spaces of semi-periodic sequences and functions are examined in the relationship to the closely related notions of almost-periodicity, quasi-periodicity and periodicity.
Andres, Jan, Pennequin, Denis
core   +2 more sources

Pseudo compact almost automorphic solutions to a family of delay differential equations

open access: yesDemonstratio Mathematica
In this article, a family of delay differential equations with pseudo compact almost automorphic coefficients is considered. By introducing a concept of Bi-pseudo compact almost automorphic functions and establishing the properties of these functions ...
Zheng Feng-Xia, Li Hong-Xu
doaj   +1 more source

Recurrent equation with sign and Fredholm alternative [PDF]

open access: yes, 2016
Producción CientíficaWe prove that a Fredholm--type Alternative holds for recurrent equations with sign, extending a previous result by Cieutat and Haraux in [3].
Campos, Juan   +2 more
core   +3 more sources

Polynomial and linearized normal forms for almost periodic differential systems [PDF]

open access: yes, 2006
"Vegeu el resum a l'inici del document del fitxer adjunt"
Llibre, Jaume   +3 more
core  

On the existence of almost periodic solutions for a class of neutral delay differential equations

open access: yes, 2014
International audienceWe study the existence of a Besicovitch almost periodic solution for a class of second order neutral delay differential equations u''(t−r)+D_1F(u(t−r),u(t−2r),t−r)+D_2F(u(t),u(t−r),t) = 0, in a Hilbert space, under some hyptoheses on
Ayachi, Moez, Lassoued, Dhaou
core   +1 more source

Unified approach to bounded, periodic and almost periodic solutions of differential systems [PDF]

open access: yes, 1997
The criteria for an entirely bounded solution of a quasi-linear differential system are developed via asymptotic boundary value problems. The same principle allows us to deduce at the same time the existence of periodic orbits, when assuming additionally
Andres, Jan, Krajc, Bohumil
core   +1 more source

Existence of almost periodic solutions of stochastic differential equations with periodic coefficients [PDF]

open access: yes, 2017
In this work, under some conditions, we will prove that a scalar stochastic differential equation with periodic coefficients admits almost periodic ...
Berboucha, Ahmed, Boudref, Mohamed Ahmed
core  

Almost-periodic solutions in various metrics of higher-order differential equations with a nonlinear restoring term [PDF]

open access: yes, 2006
summary:Almost-periodic solutions in various metrics (Stepanov, Weyl, Besicovitch) of higher-order differential equations with a nonlinear Lipschitz-continuous restoring term are investigated. The main emphasis is focused on a Lipschitz constant which is
Andres, Jan   +2 more
core  

Intraspecific and monotone enzyme catalysis with oscillatory substrate and inhibitor supplies

open access: yes
Enzyme catalysis in reactors for industrial applications usually require an external intervention of the species involved in the chemical reactions. We analyze the most elementary open enzyme catalysis with competitive inhibition where a time-dependent ...
Díaz-Marín, Homero G.   +1 more
core   +1 more source

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