Results 51 to 60 of about 216 (102)

Compositional hypercyclicity equals supercyclicity [PDF]

open access: yes, 2007
In this note it is proved that the sequence of composition operators generated by automorphisms of a simply connected domain strictly contained in the complex plane is hypercyclic –that is, possesses some dense orbit– if and only if it is supercyclic ...
Bonilla Ramírez, Antonio Lorenzo   +2 more
core   +1 more source

LIMITS OF WEAKLY HYPERCYCLIC AND SUPERCYCLIC OPERATORS [PDF]

open access: yesGlasgow Mathematical Journal, 2005
A bounded operator \(T\) an a complex separable Hilbert space \(H\) is said to be hypercyclic (written \(T\in HC(H)\)) if there exists \(x\in H\) such that \(\mathcal{O}rb(T,x)=\{T^{n}x ; n\geq 0\}\) is dense in \(H\). It is said to be weakly hypercyclic (\(T\in WHC(H)\)) if there exists \(x\in H\) such that \(\mathcal{O}rb(T,x)\) is weakly dense in ...
openaire   +1 more source

Weak Stability and Quasistability [PDF]

open access: yes
It is known that weak l-sequential supercyclicity implies weak quasistability, and it is still unknown weather weak l-sequential supercyclicity implies weak stability, much less whether weak supercyclicity implies weak stability (although it is known for
Vieira, P. C. M., Kubrusly, C. S.
core   +1 more source

INVARIANT SUBSPACE FOR LINEAR OPERATORS IN SEMI HILBERTIAN SPACE [PDF]

open access: yes, 2020
Intervention AbstractIn this paper, we obtain some results on A-hyponormal operators. We show that the results for the supercyclicity of hy- ponormal operators described in [8] remain true for A-hyponormal operators. Also, we show that every A-hyponormal
ADEL SADDI, NADER JERIDI
core  

Super-Shadowing and Supercyclicity

open access: yesMediterranean Journal of Mathematics
We introduce the super-shadowing property in linear dynamics, where pseudotrajectories are approximated by sequences of the form $(λ_nT^nx)$, with $(λ_n)_n$ being complex scalars. For compact operators on Banach spaces, we characterize the operators that possess the positive super-shadowing property and the positive limit super-shadowing property ...
Cabezas, Eric, Saavedra, Manuel
openaire   +2 more sources

Disjoint supercyclic pseudo-shifts

open access: yes
We  give a characterization for disjoint supercyclicity of a finite number of unilateral pseudo-shift operators on [[EQUATION]]. We also characterize unilateral pseudo-shifts that satisfy the Disjoint Supercyclicity Criterion.
NURHAN ÇOLAKOĞLU
core   +1 more source

The positive supercyclicity theorem

open access: yes, 2004
V Curso Espacios de Banach y Operadores. Laredo, Agosto de 2003We present some recent results related with supercyclic operators, also some of its consequences.Presentamos algunos resultados recientes relacionados con los operadores supercíclicos, así ...
León Saavedra, Fernando
core  

SUPERCYCLICITY OF TWO-ISOMETRIES

open access: yesHonam Mathematical Journal, 2008
M. Faghih Ahmadi, K. Hedayatian
openaire   +2 more sources

Weak Supercyclicity—An Expository Survey [PDF]

open access: yesResults in Mathematics
This is an exposition on supercyclicity and weak supercyclicity, especially designed to advance further developments in weakly supercyclicity, which is a recent research field showing significant momentum during the past two decades. For operators on a normed space, the present paper explores the relationship among supercyclicity and three versions of ...
Carlos Kubrusly
exaly   +6 more sources

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