Results 111 to 120 of about 1,147,699 (174)

Note on epsilon-cyclic operator

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences
In this paper, we investigated the concept of ε-diskcyclic operators on a separable infinite-dimensional Hilbert space . A bounded linear operator  is called -diskcyclic if there exists a vector in  such that its disk orbit  visits every cone of ...
Muammer Badree Abed, Zeana Zaki Jamil
doaj   +1 more source

GELFOND-LEONTYEV GENERAL DIFFERETIATION OPERATORS AND BRENKE POLYNOMIALS

open access: yesAdvanced Engineering Research, 2010
Natural connection between Gelfond-Leontyev generalized derivation operators (GDO) and  Brenke polynomials is established. Operator extension criterion commuting with GDO up to continuous H(G) space is derived.
Alexander V. BRATISHCHEV
doaj  

Methods Used in the Development of Common Data Models for Health Data: Scoping Review.

open access: yesJMIR Med Inform, 2023
Ahmadi N   +6 more
europepmc   +1 more source

On hypercyclic operators in weighted spaces of infinitely differentiable functions

open access: yesУфимская осенняя математическая школа - 2022. Т.1, 2022

semanticscholar   +1 more source

On the Weakly Hypercyclic Composition Operators on Hardy Spaces

open access: yesJournal of Mathematical Extension, 2010
An operator T on a Banach space X is said to be weakly hypercyclic if there exists a vector x ∈ X whose orbit under T is weakly dense in X. We show that every weakly hypercyclic composition operator on classic Hardy space H2 is norm hypercyclic.
H. Rezaei
doaj  

On numerically hypercyclic operators

open access: yes, 2013
According to Kim, Peris and Song, a continuous linear operator $T$ on a complex Banach space $X$ is called {\it numerically hypercyclic} if the numerical orbit $\{f(T^nx):n\in\N\}$ is dense in $\C$ for some $x\in X$ and $f\in X^*$ satisfying $\|x\|=\|f\|=f(x)=1$. They have characterized numerically hypercyclic weighted shifts and provided an example of
openaire   +2 more sources

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  

Ecology and Evolution in the RNA World Dynamics and Stability of Prebiotic Replicator Systems. [PDF]

open access: yesLife (Basel), 2017
Szilágyi A   +5 more
europepmc   +1 more source

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