Results 21 to 30 of about 28,792 (297)
On Almost periodicity and minimality for semiflows [PDF]
, 2023 In topological dynamics, the dynamical behavior sometimes has a sharp contrast when the action is by semigroups or monoids to when the action is by groups.
Nagar, Anima, Auslander, Joseph
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Abstract almost periodicity for group actions on uniform topological spaces [PDF]
, 2022 We present a unified theory for the almost periodicity of functions with values in an arbitrary Banach space, measures and distributions via almost periodic elements for the action of a locally compact abelian group on a uniform topological space.
Spindeler, Timo +5 more
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Remotely $c$-almost periodic type functions in ${\mathbb{R}}^{n}$ [PDF]
, 2022 summary:In this paper, we relate the notions of remote almost periodicity and quasi-asymptotical almost periodicity; in actual fact, we observe that a remotely almost periodic function is nothing else but a bounded, uniformly continuous quasi ...
Kostić, Marco, Kumar, Vipin
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Almost periodicity and periodicity for nonautonomous random dynamical systems [PDF]
, 2020 International audienceWe present a notion of almost periodicity wich can be applied to random dynamical systems as well as almost periodic stochastic differential equations in Hilbert spaces (abstract stochastic partial differential equations).
Raynaud de Fitte, Paul
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Bochner-almost periodicity for stochastic processes [PDF]
, 2012 We compare several notions of almost periodicity for continuous processes defined on the time interval I = R or I = [0,+∞) with values in a separable Banach space E (or more generally a separable completely regular topological space): almost periodicity ...
Fazia Bedouhene +5 more
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Limit periodic linear difference systems with coefficient matrices from commutative groups
Electronic Journal of Qualitative Theory of Differential Equations, 2014 In this paper, limit periodic and almost periodic homogeneous linear difference systems are studied. The coefficient matrices of the considered systems belong to a given commutative group.
Petr Hasil, Michal Veselý
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Cocycles and Almost Periodicity [PDF]
Journal of the London Mathematical Society, 1987 Let G be a compact abelian group containing, as a dense subgroup, the image of \({\mathbb{R}}\) by a continuous injective homomorphism, say \(\alpha\). A cocycle on G is defined here as a unitary \((=\) of modulus 1) continuous function on \(G\times {\mathbb{R}}\) satisfying the identity \(Y(g,s+t)=Y(g,s)Y(g+\alpha (s),t)\). A cocycle is called trivial
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Pure point diffraction and almost periodicity [PDF]
, 2023 This article deals with pure point diffraction and its connection to various notions of almost periodicity. We explain why the Fibonacci chain does not fit into the classical class of Bohr almost periodicity and how it fits into the classes of mean ...
Spindeler, Timo +2 more
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A simple almost-periodicity criterion and applications [PDF]
, 1987 We introduce a new almost-periodicity criterion for functions: R → X with X a complete metric space. This result is used to establish asymptotic almost periodicity of precompact positive trajectories to some differential equations of the form dudt + A(t)
Haraux, A, A Haraux
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Electronic 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
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