Results 1 to 10 of about 56 (53)

On the Recurrent C0-Semigroups, Their Existence, and Some Criteria

open access: yesJournal of Mathematics, 2021
In this paper, recurrent C0-semigroups are introduced and investigated. It is proved that, despite hypercyclic C0-semigroups, recurrent C0-semigroups can be found on finite-dimensional Banach spaces.
Mansooreh Moosapoor
doaj   +2 more sources

The Strong Disjoint Blow-Up/Collapse Property

open access: yesJournal of Function Spaces and Applications, 2013
Let be a topological vector space, and let be the algebra of continuous linear operators on . The operators are disjoint hypercyclic if there is such that the orbit is dense in .
Héctor N. Salas
doaj   +2 more sources

An Extension of Hypercyclicity for N-Linear Operators

open access: yesAbstract and Applied Analysis, 2014
Grosse-Erdmann and Kim recently introduced the notion of bihypercyclicity for studying the existence of dense orbits under bilinear operators. We propose an alternative notion of orbit for N-linear operators that is inspired by difference equations ...
Juan Bès, J. Alberto Conejero
doaj   +2 more sources

Growth of hypercyclic entire functions for some non-convolution operators

open access: yesConcrete Operators, 2023
A continuous linear operator TT defined on a Fréchet space XX is said to be hypercyclic if there exists f∈Xf\in X such that, the orbit {Tnf}\left\{{T}^{n}f\right\} is dense in XX. In this article, we consider the operators introduced by Aron and Markose,
Romero de la Rosa María Pilar
doaj   +1 more source

Non‐Diskcyclicity of Bounded Composition Operators on the Little Bloch Space and the Besov Space

open access: yesJournal of Mathematics, Volume 2022, Issue 1, 2022., 2022
In this paper, we show that there are no diskcyclic composition operators on the little Bloch space ℬ0 and the Besov spaces Bp.
Hang Zhou   +2 more
wiley   +1 more source

Topological Transitivity of Shift Similar Operators on Nonseparable Hilbert Spaces

open access: yesJournal of Function Spaces, Volume 2021, Issue 1, 2021., 2021
In this paper, we investigate topological transitivity of operators on nonseparable Hilbert spaces which are similar to backward weighted shifts. In particular, we show that abstract differential operators and dual operators to operators of multiplication in graded Hilbert spaces are similar to backward weighted shift operators.
Andriy Zagorodnyuk   +2 more
wiley   +1 more source

G- Cyclicity And Somewhere Dense Orbit

open access: yesمجلة بغداد للعلوم, 2010
let H be an infinite – dimensional separable complex Hilbert space, and S be a multiplication semigroup of  with 1. An operator T is called G-cyclic over S if there is a non-zero vector xÎ H such that {aTn  x½aÎS, n ≥0} is norm-dense in H.
Zeana Zaki Jamil
doaj   +1 more source

Generalized Asymptotically Almost Periodic and Generalized Asymptotically Almost Automorphic Solutions of Abstract Multiterm Fractional Differential Inclusions

open access: yesAbstract and Applied Analysis, Volume 2018, Issue 1, 2018., 2018
The main aim of this paper is to investigate generalized asymptotical almost periodicity and generalized asymptotical almost automorphy of solutions to a class of abstract (semilinear) multiterm fractional differential inclusions with Caputo derivatives. We illustrate our abstract results with several examples and possible applications.
G. M. N’Guérékata   +2 more
wiley   +1 more source

S‐Mixing Tuple of Operators on Banach Spaces

open access: yesJournal of Function Spaces, Volume 2016, Issue 1, 2016., 2016
We consider the question: what is the appropriate formulation of Godefroy‐Shapiro criterion for tuples of operators? We also introduce a new notion about tuples of operators, S‐mixing, which lies between mixing and weakly mixing. We also obtain a sufficient condition to ensure a tuple of operators to be S‐mixing.
Wei Wang   +3 more
wiley   +1 more source

Hypercyclic Behavior of Translation Operators on Spaces of Analytic Functions on Hilbert Spaces

open access: yesJournal of Function Spaces, Volume 2015, Issue 1, 2015., 2015
We consider special Hilbert spaces of analytic functions of many infinite variables and examine composition operators on these spaces. In particular, we prove that under some conditions a translation operator is bounded and hypercyclic.
Zoryana Mozhyrovska   +2 more
wiley   +1 more source

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