Results 1 to 10 of about 46,339 (159)

Generalized ρ-Almost Periodic Sequences and Applications

Fractal and Fractional, 2023
In this paper, we analyze the Bohr ρ-almost periodic type sequences and the generalized ρ-almost periodic type sequences of the form F:I×X→Y, where ∅≠I⊆Zn, X and Y are complex Banach spaces and ρ is a general binary relation on Y.
Marko Kostić, Belkacem Chaouchi, Wei-Shih Du, Daniel Velinov   +3 more
doaj   +2 more sources

Almost periodic sequences

Theoretical Computer Science, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Alexei Semenov
exaly   +3 more sources

Almost periodic random sequences in probability

Journal of Mathematical Analysis and Applications, 2007
The authors prove that a discrete version of almost periodic random sequences in probability solves a class of random difference equations.
Jialin Hong
exaly   +2 more sources

Almost Perfect Sequences and Periodic Complementary Sequence Pairs over the 16-QAM Constellation

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2012
SUMMARY Based on quadriphase perfect sequences and their cyclical shift versions, three families of almost perfect 16-QAM sequences are presented. When one of two time shifts chosen equals half a period of quadriphase sequence employed and another is zero, two of the proposed three sequence families possess the property that their out-of-phase ...
Guixin Xuan, Fanxin Zeng, Zhenyu Zhang   +2 more
exaly   +2 more sources

Almost periodic random sequences in probability

Nonautonomous Dynamical Systems, 2017
Abstract This paper is concerned with almost periodic random sequences in probability. Some basic and fundamental properties of such sequences are established.
exaly   +4 more sources

Almost Periodic Solutions of Abstract Impulsive Volterra Integro-Differential Inclusions

Fractal and Fractional, 2023
In this paper, we introduce and systematically analyze the classes of (pre-)(B,ρ,(tk))-piecewise continuous almost periodic functions and (pre-)(B,ρ,(tk))-piecewise continuous uniformly recurrent functions with values in complex Banach spaces.
Wei-Shih Du, Marko Kostić, Daniel Velinov   +2 more
doaj   +1 more source

AN ANTENNA BASED ON A HYBRID METAL–DIELECTRIC STRUCTURE [PDF]

Radio Physics and Radio Astronomy, 2021
Purpose: Nowadays, in the millimeter frequency range, the dielectric waveguides of various modifications have certain advantages over the standard metal waveguides, primarily due to the possibility of creating functional units based on them.
D. V. Mayboroda, S. O. Pogarsky
doaj   +1 more source

Weighted Pseudo-θ-Almost Periodic Sequence and Finite-Time Guaranteed Cost Control for Discrete-Space and Discrete-Time Stochastic Genetic Regulatory Networks with Time Delays

Axioms, 2023
This paper considers the dual hybrid effects of discrete-time stochastic genetic regulatory networks and discrete-space stochastic genetic regulatory networks in difference formats of exponential Euler difference and second-order central finite ...
Shumin Sun, Tianwei Zhang, Zhouhong Li
doaj   +1 more source

On the Relation Between Fourier Frequency and Period for Discrete Signals, and Series of Discrete Periodic Complex Exponentials

IEEE Open Journal of Signal Processing, 2021
Discrete complex exponentials are almost periodic signals, not always periodic; when periodic, the frequency determines the period, but not viceversa, the period being a chaotic function of the frequency, expressible in terms of Thomae's function.
Alfredo Restrepo, Julian Quiroga, Jairo Hurtado   +2 more
doaj   +1 more source

The Method of Estimating the Period of a Symbolic Periodic Sequence with Noise, Based on the Sub-Words Positions in the Sequence

Современные информационные технологии и IT-образование, 2020
The method of estimating the period of an almost periodic sequence is proposed. The period of an almost periodic sequence is the length of the smallest periodic pattern that composes the corresponding completely periodic sequence by repetition.
Galina Zhukova, Alexey Zhukov, Yuri Smetanin, Mikhail Ulyanov   +3 more
doaj   +1 more source