Results 251 to 260 of about 498,134 (298)

Almost periodic sequence solution of a discrete Hassell-Varley predator-prey system with feedback control

Applied Mathematics and Computation, 2015
Xiao Xie, Chunhua Zhang, Xiaoxing Chen, Jiangyong Chen   +3 more
semanticscholar   +3 more sources

Permanence and almost periodic sequence solution for a discrete delay logistic equation with feedback control

Nonlinear Analysis: Real World Applications, 2011
Yongkun Li, Tianwei Zhang
semanticscholar   +3 more sources

The existence and global attractivity of almost periodic sequence solution of discrete-time neural networks

Physics Letters, Section A: General, Atomic and Solid State Physics, 2006
Zhenkun Huang, Xinghua Wang, F. Gao
semanticscholar   +3 more sources

On construction of almost periodic sequences and applications to some discrete population models

, 2021
In this work, we develop a novel approximation strategy for building almost periodic sequences in the theory of almost periodic functions. Here, we create a different perspective for the argument of Dirichlet in the theory of numbers and design an ...
Ali Hamidoğlu, M. H. Taghiyev
semanticscholar   +1 more source

Multi–Filter Observations of the Complex Periodic Variations in Eight Pre-Main Sequence Stars

Monthly notices of the Royal Astronomical Society, 2022
Follow up time series photometry through various combinations of the BVRCIC filter set is presented for 8 young stars. The complex periodic variability of 7 of the stars was first discovered in TESS photometry, while one star was first observed by K2 ...
C. Koen
semanticscholar   +1 more source

Recurrent and almost-periodic sequences

Archiv der Mathematik, 1997
A sequence \(g:\mathbb{N}\to\mathbb{C}\) is called almost-periodic if it belongs to the completion \({\mathcal A}^1\) of the \(\mathbb{C}\)-linear space spanned by the sequences \(e_\vartheta\) with \(\vartheta\in\mathbb{R}/ \mathbb{Z}\), where \(e_\vartheta(n) =e^{2\pi i\vartheta n}\) for \(n\in\mathbb{N}\), under the semi-norm \[ |g|_1= \limsup_{x\to\
openaire   +2 more sources

On Almost-Periodic Operators in the Spaces of Sequences

Acta Applicandae Mathematica, 2001
The author presents some results concerning the norm and the invertibility of the almost-periodic discrete operators of the form \[ (Ax)(n)=\sum_{m\in Z}A(n,m)x(m)\qquad n\in Z \] acting in spaces of sequences with values in a Banach space \(E\). Among the considered spaces of sequences there are the spaces \[ l^p(E)=\left\{ x=\{ x(n)\} _{n\in Z} \Bigl|
Bruno, Giordano, Pankov, A., Tverdokhleb, Yu.   +2 more
openaire   +1 more source

Bifurcation in the almost periodic Ricker map

Journal of difference equations and applications (Print), 2019
It was shown in an earlier publication that the Ricker equation with Almost Periodic coefficient with finitely generated frequency module and with average value lying in has Almost Periodic solutions lying on a torus of the same dimension as the (finite)
R. Sacker
semanticscholar   +1 more source

Almost periodic motion planning and control for double rotary pendulum with experimental validation

Asian journal of control, 2019
The aim is to develop a systematic procedure for planning feasible motions for a double rotary pendulum. This pendulum has one directly actuated horizontal link and two passive links, moving in a rotating vertical plane.
Zeguo Wang, L. Freidovich, Honghua Zhang
semanticscholar   +1 more source

On almost periodicity of morphic sequences

Doklady Mathematics, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source