Results 71 to 80 of about 1,809 (166)

The concept and properties of quasi-rigid $C_{0}$-semigroups [PDF]

open access: yesریاضی و جامعه
In this paper, quasi-rigid $C_{0}$-semigroups are introduced and their properties are investigated. Also, some sufficient conditions for quasi-rigidity are stated. It is proved that quasi-rigid $C_{0}$-semigroups are recurrent. It is stated that if a $C_{
Mansooreh Moosapoor
doaj   +1 more source

The narrow recurrence of random dynamical systems [PDF]

open access: yesMathematica Bohemica
Let $(\Omega,\mathcal{F},\mathbb{P})$ be a probability space, where $\mathcal{F}$ is countably generated, and $X$ be a Polish space. Let $\varphi$ be a random dynamical system with time $\mathbb{T}$ on $X$.
Ahmed Zaou, Mohamed Amouch
doaj   +1 more source

Weakly Hypercyclic Composition Operators on some Hilbert Spaces of Analytic Functions

open access: yesJournal of Mathematical Extension, 2013
In this paper, weakly supercyclicity and weakly hypercyclicity of composition operators on some Hilbert spaces of analytic functions, especially on some weighted Hardy spaces are investigated.
Z. Kamali
doaj  

Supercyclicity and Hypercyclicity of an Isometry Plus a Nilpotent

open access: yesAbstract and Applied Analysis, 2011
Suppose that X is a separable normed space and the operators A and Q are bounded on X. In this paper, it is shown that if AQ=QA, A is an isometry, and Q is a nilpotent then the operator A+Q is neither supercyclic nor weakly hypercyclic. Moreover, if the
S. Yarmahmoodi   +2 more
doaj   +1 more source

Universality of sequences of operators related to Taylor series [PDF]

open access: yes, 2019
In this note, the universality of a sequence of operators associated to the partial sums of the Taylor series of a holomorphic function is investigated.
Bernal González, Luis   +3 more
core  

Tuples of Operators with Hereditarily Transitivity Property

open access: yesJournal of Mathematical Extension, 2013
In this paper, we investigate the relation between hypercyclicity and d-dense orbits of a tuple of operators.
B. Yousefi∗, K. Jahedi
doaj  

On the disk-cyclic linear relations [PDF]

open access: yesMathematica Bohemica
The study of linear dynamical systems for linear relations was initiated by C.-C. Chen et al. in (2017). Then E. Abakumov et al. extended hypercyclicty to linear relations in (2018). We extend the concept of disk-cyclicity studied in M.
Mohamed Amouch   +2 more
doaj   +1 more source

The Specification Property for $C_0$-Semigroups

open access: yes, 2018
We study one of the strongest versions of chaos for continuous dynamical systems, namely the specification property. We extend the definition of specification property for operators on a Banach space to strongly continuous one-parameter semigroups of ...
Bartoll, S.   +3 more
core  

Subspace hypercyclicity

open access: yesJournal of Mathematical Analysis and Applications, 2011
15 ...
Madore, Blair F.   +1 more
openaire   +3 more sources

Recurrence and mixing recurrence of multiplication operators [PDF]

open access: yesMathematica Bohemica
Let $X$ be a Banach space, $\mathcal{B}(X)$ the algebra of bounded linear operators on $X$ and $(J, \|{\cdot}\|_J)$ an admissible Banach ideal of $\mathcal{B}(X)$.
Mohamed Amouch, Hamza Lakrimi
doaj   +1 more source

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