Results 1 to 10 of about 28,500 (245)

Generalized ρ-Almost Periodic Sequences and Applications

open access: yesFractal 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   +3 more
doaj   +2 more sources

Almost periodic sequences

open access: yesTheoretical 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

open access: yesJournal 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 periodic type solutions of differential equations with piecewise constant argument via almost periodic type sequences

open access: yesApplied Mathematics Letters, 2000
The aim of this paper is to characterize the existence of almost-periodic, asymptotically almost-periodic, and pseudo almost-periodic solutions to differential equations with piecewise constant argument of the form: \[ {dx\over dt}= f(t, x(t), x([t]), x([t- 1]),\dots, x([t- k])),\quad t\in J,\tag{1} \] where \(k\) is a positive integer, \(f\in C(J ...
Rafael Obaya, Jialin Hong
exaly   +2 more sources

Almost periodic random sequences in probability

open access: yesNonautonomous 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

Construction of almost periodic sequences with given properties

open access: yesElectronic Journal of Differential Equations, 2008
We define almost periodic sequences with values in a pseudometric space X and we modify the Bochner definition of almost periodicity so that it remains equivalent with the Bohr definition.
Michal Vesely
doaj   +2 more sources

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

open access: yesIEICE 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   +2 more
exaly   +2 more sources

Non-almost periodic solutions of limit periodic and almost periodic homogeneous linear difference systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
We study limit periodic and almost periodic homogeneous linear difference systems. The coefficient matrices of the considered systems are taken from a given commutative group.
Martin Chvátal
doaj   +1 more source

Rotation sets and almost periodic sequences [PDF]

open access: yesMathematische Zeitschrift, 2016
We study the rotational behaviour on minimal sets of torus homeomorphisms and show that the associated rotation sets can be any type of line segments as well as non-convex and even plane-separating continua. This shows that restrictions holding for rotation sets on the whole torus are not valid on minimal sets.
Jäger, T., Passeggi, A., Štimac, Sonja
openaire   +6 more sources

Asymptotically almost periodic solutions of limit and almost periodic linear difference systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
In this paper, limit periodic and almost periodic homogeneous linear difference systems are considered. We study the systems in which the coefficient matrices are taken from a given bounded group and the elements of the matrices are from an infinite ...
Martin Chvátal
doaj   +1 more source

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