Results 31 to 40 of about 1,064,326 (320)

Novel stability criteria on nonlinear density-dependent mortality Nicholson’s blowflies systems in asymptotically almost periodic environments

, 2020
In this paper, we consider nonlinear density-dependent mortality Nicholson’s blowflies system involving patch structures and asymptotically almost periodic environments.
Chaofan Qian, Yuhui Hu
semanticscholar   +1 more source

Diophantine approximations and almost periodic functions

Demonstratio Mathematica, 2017
In this paper we investigate the asymptotic behaviour of the classical continuous and unbounded almost periodic function in the Lebesgue measure.Using diophantine approximations we show that this function can be estimated by functions of polynomial type ...
Nawrocki Adam
doaj   +1 more source

Computing with almost periodic functions [PDF]

Acta Crystallographica Section A Foundations of Crystallography, 2008
The paper develops a method for discrete computational Fourier analysis of functions defined on quasicrystals and other almost periodic sets. A key point is to build the analysis around the emerging theory of quasicrystals and diffraction in the setting on local hulls and dynamical systems.
Moody, R. V., Nesterenko, M., Patera, J.
openaire   +3 more sources

Attractors for first order lattice systems with almost periodic nonlinear part

Discrete & Continuous Dynamical Systems - B, 2020
We study the existence of the uniform global attractor for a family of infinite dimensional first order non-autonomous lattice dynamical systems of the following form: \begin{document}$ \begin{equation*} \overset{.}{u}+Au+\alpha u+f\left( u,t\right) = g ...
Ahmed Y. Abdallah
semanticscholar   +1 more source

Linear Functionals on Almost Periodic Functions [PDF]

Transactions of the American Mathematical Society, 1953
Our aim is, first, to present two realizations of the space 1* of all bounded complex linear functionals on 21, and, second, to use these realizations for the study of positive definite functions which are not necessarily continuous. In this fashion, we obtain a generalization of Bochner's representation theorem for continuous positive definite ...
openaire   +2 more sources

Convolutions in (µ, ν)-pseudo-almost periodic and (µ, ν)-pseudo-almost automorphic function spaces and applications to solve integral equations

Cubo, 2021
In this paper we give sufficient conditions on $k\in L^1(\mathbb{R})$ and the positive measures $\mu$, $\nu$ such that the doubly-measure pseudo-almost periodic (respectively, doubly-measure pseudo-almost automorphic) function spaces are invariant by the
David Békollè, Khalil Ezzinbi, Samir Fatajou, Duplex Elvis Houpa Danga, Fritz Mbounja Béssémè   +4 more
doaj   +1 more source

Uniform persistence and almost periodic solutions of a nonautonomous patch occupancy model

, 2020
In this paper, a nonlinear nonautonomous model in a rocky intertidal community is studied. The model is composed of two species in a rocky intertidal community and describes a patch occupancy with global dispersal of propagules and occupy each other by ...
Hui Zhou, J. Alzabut, S. Rezapour, M. Samei   +3 more
semanticscholar   +1 more source

Besicovitch Almost Periodic Solutions of Abstract Semi-Linear Differential Equations with Delay

Mathematics, 2022
In this paper, first, we give a definition of Besicovitch almost periodic functions by using the Bohr property and the Bochner property, respectively; study some basic properties of Besicovitch almost periodic functions, including composition theorem ...
Yongkun Li, Mei Huang, Bing Li
doaj   +1 more source

Almost anti-periodic solution of inertial neural networks model on time scales

MATEC Web of Conferences, 2022
In this work, since the importance of investigation of oscillators solutions, an methodology for proving the existence and stability of almost anti-periodic solutions of inertial neural networks model on time scales are discussed.
Adnène Arbi, Najeh Tahri
semanticscholar   +1 more source

Convolutions in µ-pseudo almost periodic and µ-pseudo almost automorphic function spaces and applications to solve Integral equations

Nonautonomous Dynamical Systems, 2020
The aim of this work is to give sufficient conditions ensuring that the space PAP(𝕉, X, µ) of µ-pseudo almost periodic functions and the space PAA(𝕉, X, µ) of µ-pseudo almost automorphic functions are invariant by the convolution product f = k * f, k ...
Béssémè Fritz Mbounja, Békollè David, Ezzinbi Khalil, Fatajou Samir, Danga Duplex Elvis Houpa   +4 more
doaj   +1 more source