Results 31 to 40 of about 28,792 (297)

Positive almost periodicity on SICNNs incorporating mixed delays and D operator

Nonlinear Analysis, 2022
This article involves a kind of shunting inhibitory cellular neural networks incorporating D operator and mixed delays. First of all, we demonstrate that, under appropriate external input conditions, some positive solutions of the addressed system exist
Chuangxia Huang, Bingwen Liu, Hedi Yang, Jinde Cao   +3 more
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Almost Periodic Functions [PDF]

Proceedings of the American Mathematical Society, 1952
One of the aims in the study of almost periodic functions on a group is to generalize the Fejer summation process, whereby the Fourier series may be summed to yield the function. This has been achieved partially by Bochner-von Neumann [1] and Maak [2; 3].J But in [3] Maak says "In general it is not possible to give a summation procedure which may be ...
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Almost periodicity in semiflows [PDF]

Proceedings of the American Mathematical Society, 1995
For a semiflow on a complete metric space we show that if a semiorbit has compact closure and its positive limit set consists of stable points, the orbit is asymptotically almost periodic. Under stronger hypotheses which are more tractable in applications, the same conclusion holds. An application to a scalar delay-differential equation is given.
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Almost Periodic Time Scales and Almost Periodic Functions on Time Scales [PDF]

Journal of Applied Mathematics, 2015
We propose some new concepts of almost periodic time scales and almost periodic functions on time scales and give some basic properties of these new types of almost periodic time scales and almost periodic functions on time scales. We also give some comments on a recent paper by Wang and Agarwal (2014) concerning a new almost periodic time scale.
Li, Yongkun, Li, Bing
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Almost Periodicity in Chaos [PDF]

, 2018
Periodicity plays a significant role in the chaos theory from the beginning since the skeleton of chaos can consist of infinitely many unstable periodic motions.
Marat Akhmet, Fen, Mehmet Onur, Mehmet Onur Fen, Akhmet, Marat   +3 more
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Logarithmic bounds for Roth's theorem via almost-periodicity

Discrete Analysis, 2019
Logarithmic bounds for Roth's theorem via almost-periodicity, Discrete Analysis 2019:4, 20pp. A central result of additive combinatorics, Roth's theorem, asserts that for every $\delta>0$ there exists $N$ such that every subset of $\{1,2,\dots,N\}$ of ...
Thomas Bloom, Olof Sisask
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On the almost periodicity of a generalized trigonometric polynomial [PDF]

, 2013
This paper presents some remarks on various types of the almost periodicity of a generalized trigonometric polynomial and of the inverse of a generalized trigonometric polynomial of constant ...
Stoiński, Stanisław
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Notes on almost-periodicity in topological vector spaces

International Journal of Mathematics and Mathematical Sciences, 1986
A study is made of almost-periodic functions in topological vector spaces with applications to abstract differential equations.
Gaston Mandata N'guérékata
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Almost periodic sequences

Theoretical Computer Science, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Andrei A. Muchnik, Alexei L. Semenov, Maxim Ushakov   +2 more
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Existence of $S^2$-almost periodic solutions to a class of nonautonomous stochastic evolution equations

Electronic Journal of Qualitative Theory of Differential Equations, 2008
The paper studies the notion of Stepanov almost periodicity (or $S^2$-almost periodicity) for stochastic processes, which is weaker than the notion of quadratic-mean almost periodicity.
P. Bezandry, Toka Diagana
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