Results 21 to 30 of about 67,397 (299)

Further properties of Stepanov--Orlicz almost periodic functions [PDF]

open access: yes, 2020
summary:We revisit the concept of Stepanov--Orlicz almost periodic functions introduced by Hillmann in terms of Bochner transform. Some structural properties of these functions are investigated.
Boulahia, Fatiha   +2 more
core   +1 more source

A linear, almost periodic equation with an almost automorphic solution [PDF]

open access: yes, 1981
We construct a scalar, first order, almost periodic ODE ( ∗ ) x + A ( t ) x = B ( t ) {\text {ODE}}( * )x + A(t)x = B(t)
Johnson, Russell Allan   +1 more
core   +1 more source

Almost periodic solutions with a prescribed spectrum of systems of linear and quasilinear differential equations with almost periodic coefficients and constant time lag (Fourier transform approach) [PDF]

open access: yes, 2004
summary:This paper is a continuation of my previous paper in Mathematica Bohemica and solves the same problem but by means of another method. It deals with almost periodic solutions of a certain type of almost periodic systems of differential ...
Fischer, Alexandr
core   +1 more source

Stability of unique pseudo almost periodic solutions with measure [PDF]

open access: yes, 2020
summary:By means of the fixed-point methods and the properties of the $\mu $-pseudo almost periodic functions, we prove the existence, uniqueness, and exponential stability of the $\mu $-pseudo almost periodic solutions for some models of recurrent ...
Ghanmi, Boulbaba, Miraoui, Mohsen
core   +1 more source

Almost periodic solutions with a prescribed spectrum of linear and quasilinear differential equations with almost periodic coefficients and constant time lag (Neutral differential equations) [PDF]

open access: yes, 2012
summary:The paper is the extension of the author's previous papers and solves more complicated problems. Almost periodic solutions of a certain type of almost periodic linear or quasilinear systems of neutral differential equations are dealt ...
Fischer, Alexandr
core   +1 more source

Periodic and Almost Periodic Solutions of Functional Difference Equations with Finite Delay

open access: yesAdvances in Difference Equations, 2007
For periodic and almost periodic functional difference equations with finite delay, the existence of periodic and almost periodic solutions is obtained by using stability properties of a bounded solution.
Yihong Song
doaj   +2 more sources

Periodic and almost periodic flows of periodic Ito equations [PDF]

open access: yes, 1992
summary:Under the uniform asymptotic stability of a finite dimensional Ito equation with periodic coefficients, the asymptotically almost periodicity of the $l^p$-bounded solution and the existence of a trajectory of an almost periodic flow defined on ...
Tudor, C.
core   +1 more source

Almost-periodic solution for BAM neural networks [PDF]

open access: yesSurveys in Mathematics and its Applications, 2009
In this paper, we study the existence and uniqueness solution and investigate the conditions that make it almost-periodic solution for BAM neural networks with retarded delays.
Hamid A. Jalab, Rabha W. Ibrahim
doaj  

Partially irregular almost periodic solutions of ordinary differential systems [PDF]

open access: yes, 2001
summary:Let $f(t,x)$ be a vector valued function almost periodic in $t$ uniformly for $x$, and let ${\mathrm mod}(f)=L_1\oplus L_2$ be its frequency module.
Demenchuk, Alexandr
core   +1 more source

Almost periodicity of solutions for almost periodic evolution equations

open access: yesDifferential and Integral Equations, 2005
In this paper, we discuss almost periodicity of solutions for evolution equations in Banach space. We introduce the concept of difference-variation equation. For a special Hilbert space, we establish some results on almost periodicity of all solutions for evolution equations. In particular, we extend Haraux's result on $R^2$ to $R^n.$
Hu, Zuosheng, Mingarelli, Angelo B.
openaire   +2 more sources

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