Results 11 to 20 of about 5,186,045 (202)

Complex symmetric Toeplitz operators on the Dirichlet space

open access: yesJournal of Mathematical Analysis and Applications, 2020
We study when a Toeplitz operator T ϕ on the Dirichlet space of the unit disk is complex symmetric with respect to a class of conjugations and find surprisingly that the case of complex symmetries of Toeplitz operators according to these conjugations is ...
A. Li, Ya Liu, Yong Chen
semanticscholar   +3 more sources

Algebraic properties of Toeplitz operators on the Dirichlet space

open access: yesJournal of Mathematical Analysis and Applications, 2007
We study some algebraic properties of Toeplitz operators on the Dirichlet space. We first characterize (semi-)commuting Toeplitz operators with harmonic symbols.
Y. J. Lee
semanticscholar   +3 more sources

Cyclicity in Dirichlet Spaces [PDF]

open access: yesCanadian Mathematical Bulletin, 2019
AbstractLet $\unicode[STIX]{x1D707}$ be a positive finite Borel measure on the unit circle and ${\mathcal{D}}(\unicode[STIX]{x1D707})$ the associated harmonically weighted Dirichlet space. In this paper we show that for each closed subset $E$ of the
Elmadani, Y., Labghail, I.
openaire   +2 more sources

Fréchet spaces of general Dirichlet series [PDF]

open access: yesRevista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas, 2021
Inspired by a recent article on Fr chet spaces of ordinary Dirichlet series $\sum a_n n^{-s}$ due to J.~Bonet, we study topological and geometrical properties of certain scales of Fr chet spaces of general Dirichlet spaces $\sum a_n e^{- _n s}$. More precisely, fixing a frequency $ = ( _n)$, we focus on the Fr chet space of $ $-Dirichlet series ...
Andreas Defant   +3 more
openaire   +6 more sources

A Gleason–Kahane–Żelazko theorem for the Dirichlet space [PDF]

open access: yesJournal of Functional Analysis, 2017
We show that every linear functional on the Dirichlet space that is non-zero on nowhere-vanishing functions is necessarily a multiple of a point evaluation. Continuity of the functional is not assumed.
J. Mashreghi   +2 more
semanticscholar   +1 more source

Approximation of Space-Time Fractional Equations

open access: yesFractal and Fractional, 2021
The aim of this paper is to provide approximation results for space-time non-local equations with general non-local (and fractional) operators in space and time.
Raffaela Capitanelli, Mirko D’Ovidio
doaj   +1 more source

Parameter Estimation of the Dirichlet Distribution Based on Entropy

open access: yesAxioms, 2023
The Dirichlet distribution as a multivariate generalization of the beta distribution is especially important for modeling categorical distributions. Hence, its applications vary within a wide range from modeling cell probabilities of contingency tables ...
Büşra Şahin   +4 more
doaj   +1 more source

On an entire function represented by multiple Dirichlet series [PDF]

open access: yesMathematica Bohemica, 2021
Consider the space $L$ of entire functions represented by multiple Dirichlet series that becomes a non uniformly convex Banach space which is also proved to be dense, countable and separable.
Lakshika Chutani
doaj   +1 more source

A derivative-Hilbert operator acting on Dirichlet spaces

open access: yesOpen Mathematics, 2023
Let μ\mu be a positive Borel measure on the interval [0,1)\left[0,1). The Hankel matrix Hμ=(μn,k)n,k≥0{{\mathcal{ {\mathcal H} }}}_{\mu }={\left({\mu }_{n,k})}_{n,k\ge 0} with entries μn,k=μn+k{\mu }_{n,k}={\mu }_{n+k}, where μn=∫[0,1)tndμ(t){\mu }_{n}={
Xu Yun, Ye Shanli, Zhou Zhihui
doaj   +1 more source

Carleson’s formula for some weighted Dirichlet spaces

open access: yesMoroccan Journal of Pure and Applied Analysis, 2023
We extend Carleson’s formula to radially polynomially weighted Dirichlet spaces.
Bouya B., Hartmann A.
doaj   +1 more source

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