Results 11 to 20 of about 4,638,257 (255)

BMO and the John-Nirenberg Inequality on Measure Spaces [PDF]

open access: yesAnalysis and Geometry in Metric Spaces, 2020
We study the space BMO𝒢 (𝕏) in the general setting of a measure space 𝕏 with a fixed collection 𝒢 of measurable sets of positive and finite measure, consisting of functions of bounded mean oscillation on sets in 𝒢.
Dafni Galia, Gibara Ryan, Lavigne Andrew
doaj   +4 more sources

Universal Teichmüller space and BMO

open access: yesAdvances in Mathematics, 2013
AbstractWe first give some new characterizations on BMOA–Teichmüller space and various characterizations on VMOA–Teichmüller space as well. In particular, we prove that a quasisymmetric conformal welding h corresponds to an asymptotically smooth curve in the sense of Pommerenke (1978) [32] precisely when h is absolutely continuous with logh′∈VMO.
Yu-liang Shen, Huaying Wei
semanticscholar   +3 more sources

Products of Functions in Hardy and Lipschitz or BMO Spaces [PDF]

open access: green, 2009
We define as a distribution the product of a function (or distribution) h in some Hardy space Hp with a function b in the dual space of Hp. Moreover, we prove that the product bxh may be written as the sum of an integrable function with a distribution that belongs to some Hardy-Orlicz space, or to the same Hardy space Hp, depending on the values of p.
Justin Feuto, Aline Bonami
openaire   +5 more sources

A note on the BMO-Teichmüller space

open access: yesJournal of Mathematical Analysis and Applications, 2016
Abstract Astala–Zinsmeister [2] introduced a new topology on the set of all strongly quasisymmetric homeomorphisms of the unit circle denoted by SQS ( S 1 ) by means of BMO norm. Under this new topology, we prove that SQS ( S 1 ) is a partial topological group, and the characteristic topological subgroup of ...
Huaying Wei
semanticscholar   +3 more sources

On the tangent space to the BMO-Teichmüller space

open access: yesJournal of Mathematical Analysis and Applications, 2014
Abstract In a previous paper [31] we established the complex analytic manifold theory of the BMO-Teichmuller space. In this paper we identify the function space which is the tangent space to the BMO-Teichmuller space.
Huaying Wei, Yu-liang Shen
semanticscholar   +3 more sources

BMO estimates for commutators of the rough fractional Hausdorff operator on grand-variable-Herz-Morrey spaces

open access: yesAIMS Mathematics
In this paper, we study the boundedness of the commutator of the rough fractional Hausdorff operator on grand-variable-Herz-Morrey spaces when the symbol functions belong to bounded mean oscillations (BMO) space.
Javeria Younas   +4 more
doaj   +2 more sources

Results for fractional bilinear Hardy operators in central varying exponent Morrey space

open access: yesAIMS Mathematics
This paper intends to demonstrate the boundedness of the fractional bilinear Hardy operator and its adjoint on the $ \lambda $-central Morrey space with variable exponents.
Muhammad Asim , Ghada AlNemer
doaj   +2 more sources

A characterization of $${{\mathrm{BMO}}}$$BMO self-maps of a metric measure space [PDF]

open access: yesCollectanea Mathematica, 2013
This paper studies functions of bounded mean oscillation ($${{\mathrm{BMO}}}$$BMO) on metric spaces equipped with a doubling measure. The main result gives characterizations for mappings that preserve $${{\mathrm{BMO}}}$$BMO.
J. Kinnunen   +3 more
semanticscholar   +6 more sources

The John–Nirenberg inequality in ball Banach function spaces and application to characterization of BMO

open access: yesJournal of Inequalities and Applications, 2019
Our goal is to obtain the John–Nirenberg inequality for ball Banach function spaces X, provided that the Hardy–Littlewood maximal operator M is bounded on the associate space X′ $X'$ by using the extrapolation.
Mitsuo Izuki   +2 more
doaj   +2 more sources

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