Results 171 to 180 of about 2,927,156 (202)

Essential Norms of Composition Operators

Integral Equations and Operator Theory, 2004
Recently, there has been considerable interest in studying lower and upper estimates for the essential norms of composition operators in function spaces. Sometimes, as a consequence, a necessary and sufficient condition for the composition operator to be compact on the function space can be obtained.
Gorkin, Pamela, MacCluer, Barbara D.
openaire   +1 more source

The Norms of Compositions of Arithmetic Operators

Bulletin of the London Mathematical Society, 1987
Weighted inequalities which widely generalize the Turán-Kubilius inequality are established. The following is typical: Let w(m) be a non- negative real-valued arithmetic function which satisfies w(q) \(\ll 1\), w(qm) \(\ll w(q)w(m)\) uniformly for prime-powers q and positive integers m, \((q,m)=1\).
openaire   +1 more source

Operational and compositional semantics of synchronous automaton compositions

2006
The state/transition paradigm has been used extensively for the description of event-driven, parallel systems. However, the lack for hierarchic structure in such descriptions usually prevents us from using this paradigm in a real programming language. We propose the Argos language for reactive systems. The basic components of a program are input/output-
openaire   +2 more sources

Power Bounded Composition Operators

Computational Methods and Function Theory, 2011
The author analyzes the notions of power boundedness and mean ergodicity for composition operators \(C_\phi\) acting on weighted Bergman spaces of infinite order \(H^\infty_v\). Recall that a bounded operator \(T:X\to X\) is called power-bounded whenever \(\sup_{n\in \mathbb N} \|T^n\|
openaire   +2 more sources

Weighted Composition Operators on Fock Spaces and Their Dynamics

Journal of Mathematical Analysis and Applications, 2021
Thomas Carroll, Clifford Gilmore
exaly  

Weighted Composition Operators on H 2 and Applications

Complex Analysis and Operator Theory, 2008
Valentin Matache
exaly  

Products of Integral-Type Operators and Composition Operators Between Bloch-Type Spaces

Journal of Mathematical Analysis and Applications, 2009
Songxiao Li, Stevo Stević
exaly  

Generalized Composition Operators on Zygmund Spaces and Bloch Type Spaces

Journal of Mathematical Analysis and Applications, 2008
Songxiao Li, Stevo Stević
exaly  

The product of a composition operator with the adjoint of a composition operator

1998
openaire   +1 more source

Products of Volterra Type Operator and Composition Operator From H∞ and Bloch Spaces to Zygmund Spaces

Journal of Mathematical Analysis and Applications, 2008
Songxiao Li, Stevo Stević
exaly