Results 41 to 50 of about 981 (157)

Generalized Hilbert operator on analytic function spaces [PDF]

open access: yesArab Journal of Mathematical Sciences
PurposeThe main objective of this work is to study the boundedness property of a generalized Hilbert operator Hβ for β ≥ 0 defined by, if f(z)=∑n=0∞anzn be any analytic function on the unit disk D then Hβf(z)=∑n=0∞∑k=0∞Γ(n+β+1)Γ(n+k+1)Γ(n+1)Γ(n+k+β+2 ...
Simi Bhuyan, Sunanda Naik
doaj   +1 more source

Numerical Range on Weighted Hardy Spaces as Semi Inner Product Spaces

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
The semi-inner product, in the sense of Lumer, on weighted Hardy space which generate the norm is unique. Also we will discuss some properties of the numerical range of bounded linear operators on weighted Hardy spaces.
Heydari Mohammad Taghi
doaj   +1 more source

Weighted Hardy operators in local generalized Orlicz-Morrey spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
In this paper, we find sufficient conditions on general Young functions $(\Phi, \Psi)$ and the functions $(\varphi_1,\varphi_2)$ ensuring that the weighted Hardy operators $A_\omega^\alpha$ and ${\mathcal A}_\omega^\alpha$ are of strong type from a local
C. Aykol, Z.O. Azizova, J.J. Hasanov
doaj   +1 more source

Essential spectra of weighted composition operators with hyperbolic symbols

open access: yesConcrete Operators, 2015
In this paperwe study both the spectra and the essential spectra ofweighted composition operators on Hardy spaces Hp(ⅅ), standard weighted Bergman spaces Apα(ⅅ) and weighted H∞1-type spaces when the symbols are of hyperbolic ...
Hyvärinen Olli, Nieminen Ilmari
doaj   +1 more source

The spectra and eigenvectors for the weighted mean matrix operator

open access: yesArab Journal of Mathematical Sciences, 2015
In this paper, first we give conditions under which the weighted mean matrix operator is bounded on the weighted Hardy spaces, and we characterize the spectrum of the weighted mean matrix operator acting on some sequence spaces.
E. Pazouki, B. Yousefi
doaj   +1 more source

Commutators of Pseudodifferential Operators on Weighted Hardy Spaces

open access: yesJournal of Mathematics, 2022
In this paper, we establish an endpoint estimate for the commutator, b,T, of a class of pseudodifferential operators T with symbols in Hörmander class Sρ,δmRn.
Yu-long Deng
doaj   +1 more source

Interpolation of Weighted and Vector-Valued Hardy Spaces [PDF]

open access: yesTransactions of the American Mathematical Society, 1994
Real and complex interpolation methods, when applied to the couple ( H
Kisliakov, Serguei V., Xu, Quanhua
openaire   +2 more sources

Boundedness estimates of commutators on weighted Hardy-type spaces(交换子在加权Hardy型空间上的有界性估计)

open access: yesZhejiang Daxue xuebao. Lixue ban
The theory of pseudodifferential operator commutators is an important tool in the study of the well-posedness of solutions problems of partial differential equations.
DENG Yulong(邓宇龙)   +1 more
doaj   +1 more source

The S-Transform on Hardy Spaces and Its Duals

open access: yesInternational Journal of Analysis and Applications, 2015
In this paper, continuity and boundedness results for the continuous S-transform in BMO and Hardy spaces are obtained. Furthermore, the continuous S-transform is also studied on the weighted BMO$_k$ and weighted Hardy spaces associated with a tempered
Sunil Kumar Singh, Baby Kalita
doaj   +2 more sources

Riesz Transform Characterization of Weighted Hardy Spaces Associated with Schrödinger Operators

open access: yesJournal of Function Spaces, 2016
We characterize the weighted local Hardy spaces hρ1(ω) related to the critical radius function ρ and weights ω∈A1ρ,∞(Rn) by localized Riesz transforms R^j; in addition, we give a characterization of weighted Hardy spaces HL1(ω) via Riesz transforms ...
Hua Zhu
doaj   +1 more source

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