10 research outputs found
Reflexivity on Banach Spaces of Analytic Functions
. Let X be a Banach space of functions analytic on
a plane domain Ω such that for every λ in Ω the functional of
evaluation at λ is bounded. Assume further that X contains the
constants and admits multiplication by the independent variable
z, Mz, as a bounded operator. We give sufficient conditions for
Mz to be reflexive
Weighted Sequence Spaces and Cyclicity
In this paper we investigate the cyclicity of the multiplication
operator Mz acting on the weighted Hardy spaces of
formal Laurent series.
AMS Subject Classification: Primary 47B37; Secondary 47A16.
Keywords and Phrases: Banach space of Laurent series associated
with a sequence β, cyclic vector, multiplication operator, disc
algebra
Supercyclicity with Respect to a Sequence on Special Sequence Spaces
Let {β(n)}∞
n=−∞ be a sequence of positive numbers
such that β(0) = 1 and let 1 < p < ∞. We consider the space of
all formal Laurent series f(z) = P∞
n=−∞
ˆf(n)z
n such that
X∞
n=−∞
|
ˆf(n)|
pβ(n)
p < ∞.
We investigate the supercyclicity with respect to a sequence on the
Banach spaces of formal Laurent serie