Results 31 to 40 of about 277 (127)

Distance from Bloch-Type Functions to the Analytic Space F(p,q,s)

open access: yesAbstract and Applied Analysis, 2014
The analytic space F(p,q,s) can be embedded into a Bloch-type space. We establish a distance formula from Bloch-type functions to F(p,q,s), which generalizes the distance formula from Bloch functions to BMOA by Peter Jones, and to F(p,p-2,s) by Zhao.
Cheng Yuan, Cezhong Tong
doaj   +1 more source

Values of BMOA functions on interpolating sequences. [PDF]

open access: yesMichigan Mathematical Journal, 1984
Let \(\rho (z,w)=| (z-w)/(1-\bar zw)|\) denote the pseudo- hyperbolic distance between z, \(w\in {\mathbb{D}}\) and let \(\{z_ n\}\) be an interpolating sequence in \({\mathbb{D}}\), i.e. a sequence satisfying \(\prod_{m\neq n}\rho (z_ m,z_ n)\geq \rho >0\) for all n. The purpose of this interesting paper is to give a complete characterization of those
openaire   +3 more sources

On families of Cauchy transforms and BMOA [PDF]

open access: yesJournal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics, 2000
AbstractIn this paper we prove a number of results on Cauchy transforms of generalized type given by Borel measures supported on the class of analytic functions mapping the unit disc into the unit disk. We also give a BMOA characterization using these families.
Muhanna, Yusuf Abu, Yallaoui, El-Bachir
openaire   +2 more sources

Carleson measure and Volterra type operators on weighted BMOA spaces

open access: yes, 2018
Let μ be a nonnegative Borel measure on the unit disk 𝔻 {\mathbb{D}}
Ruishen Qian, Songxiao Li
core   +1 more source

Semigroups of composition operators and Integral operators in BMOA-type spaces

open access: yes, 2021
The aim of this article is to study semigroups of composition operators on the BMOA-type spaces $BMOA_p$, and on their "little oh" analogues $VMOA_p$. The spaces $BMOA_p$ were introduced by R.
Daskalogiannis, Vassilis   +1 more
core   +1 more source

Multivalent functions and QK spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
We give a criterion for q-valent analytic functions in the unit disk to belong to QK, a Möbius-invariant space of functions analytic in the unit disk in the plane for a nondecreasing function K:[0,∞)→[0,∞), and we show by an example that our condition is
Hasi Wulan
doaj   +1 more source

Bloch-to-BMOA pullbacks on the disk [PDF]

open access: yesProceedings of the American Mathematical Society, 1997
A holomorphic self map \(\varphi\) of the unit disc \(D\) (of the complex plane \(\mathbb{C})\) has the pullback property if \(f\circ \varphi\in \text{BMOA}\) for all \(f\) in the Bloch space \(B\). The authors show that \(\varphi\) cannot have the pullback property if it touches the boundary too smoothly, and that \(\varphi\) has the pullback property
Choe, Boo Rim   +2 more
openaire   +2 more sources

Smaller Optic Discs Show Higher Macular Flow Density: An Optical Coherence Tomography Angiography Study

open access: yesBiomedicines
Background/Objectives: This study aimed to investigate the correlation between macular flow density (FD) as well as foveal avascular zone (FAZ) characteristics and optic disc size, quantified by Bruch’s membrane opening area (BMOA).
Charlotte Egbring   +4 more
doaj   +1 more source

Weakly compact composition operators on vector-valued BMOA

open access: yes, 2005
Weak compactness of the analytic composition operator f↦f○φ is studied on BMOA(X), the space of X-valued analytic functions of bounded mean oscillation, and its subspace VMOA(X), where X is a complex Banach space.
Laitila, Jussi
core   +1 more source

Does Sustainability Auditing Lead to Enhanced Corporate Governance, Environmental Performance, and Financial Outcomes? Empirical Evidence From High‐Impact Industries

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study employs hierarchical regression modelling on a survey of 550 firms from Nigeria and Ghana to examine the impact of sustainability auditing on corporate governance, environmental performance, and financial outcomes of high‐impact industries.
Mandella Osei‐Assibey Bonsu   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy