Results 1 to 10 of about 102 (87)

Boundedly Spaced Subsequences and Weak Dynamics

open access: yesJournal of Function Spaces, 2018
Weak supercyclicity is related to weak stability, which leads to the question that asks whether every weakly supercyclic power bounded operator is weakly stable.
C. S. Kubrusly, P. C. M. Vieira
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 Bรจs, J. Alberto Conejero
doaj   +2 more sources

Non-Weakly Supercyclic Weighted Composition Operators

open access: yesAbstract and Applied Analysis, 2010
We give sufficient conditions under which a weighted composition operator on a Hilbert space of analytic functions is not weakly supercyclic. Also, we give some necessary and sufficient conditions for hypercyclicity and supercyclicity of weighted ...
Z. Kamali   +2 more
doaj   +2 more sources

On Some Normality-Like Properties and Bishop's Property (๐›ฝ) for a Class of Operators on Hilbert Spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2012
We prove some further properties of the operator ๐‘‡โˆˆ[๐‘›QN] (๐‘›-power quasinormal, defined in Sid Ahmed, 2011). In particular we show that the operator ๐‘‡โˆˆ[๐‘›QN] satisfying the translation invariant property is normal and that the operator ๐‘‡โˆˆ[๐‘›QN] is not ...
Sid Ahmed Ould Ahmed Mahmoud
doaj   +2 more sources

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   +2 more sources

On supercyclicity of operators from a supercyclic semigroup

open access: yesJournal of Mathematical Analysis and Applications, 2011
We show that for every supercyclic strongly continuous operator semigroup ${T_t}_{t\geq 0}$ acting on a complex $\F$-space, every $T_t$ with $t>0$ is supercyclic. Moreover, the set of supercyclic vectors of each $T_t$ with $t>0$ is exactly the set of supercyclic vectors of the entire semigroup.
Stanislav Shkarin
exaly   +6 more sources

Weighted Composition Operators and Supercyclicity Criterion [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
We consider an equivalent condition to the property of Supercyclicity Criterion, and then we investigate this property for the adjoint of weighted composition operators acting on Hilbert spaces of analytic functions.
Bahmann Yousefi, Javad Izadi
openaire   +3 more sources

Supercyclic Weighted Composition Operators on the Space of Smooth Functions

open access: yesMathematics
A weighted composition operator on the space of scalar-valued smooth functions on an open subset of a d-dimensional Euclidean space is supercyclic if and only if it is weakly mixing, and it is strongly supercyclic if and only if it is mixing.
Juan Bes
exaly   +3 more sources

Weakly supercyclic operators

open access: yesJournal of Mathematical Analysis and Applications, 2004
An operator \(T\) on a Banach space \({\mathcal B}\) is said to be supercyclic if there is \(x\in{\mathcal B}\) such that \(\{\lambda T^n x: \lambda \in \mathbb C \text{ and } n=0,1,\ldots \}\) is dense in \(\mathcal B\). If norm density is replaced by density with respect to the weak topology, then one obtains the concept of weakly supercyclic ...
Rebecca Sanders
exaly   +2 more sources

On Weak Supercyclicity I [PDF]

open access: yesMathematical Proceedings of the Royal Irish Academy, 2018
This paper provides conditions (i) to distinguish weak supercyclicity form supercyclicity for operators acting on normed and Banach spaces, and also (ii) to ensure when weak supercyclicity implies weak stability.
Kubrusly, Carlos S., Duggal, Bhagwati P.
openaire   +5 more sources

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