Results 111 to 120 of about 26,267 (271)

BMO from dyadic BMO for nonhomogeneous measures

open access: yes, 2018
The usual one third trick allows to reduce problems involving general cubes to a countable family. Moreover, this covering lemma uses only dyadic cubes, which allows to use nice martingale properties in harmonic analysis problems. We consider alternatives to this technique in spaces equipped with nonhomogeneous measures.
openaire   +2 more sources

Littlewood-Paley Operators on BMO [PDF]

open access: yesProceedings of the American Mathematical Society, 1987
Two Littlewood-Paley operators, the area integral and the function g λ ∗ g_\lambda ^ * , are considered as operators on functions of bounded mean oscillation. It is proved that the image of a BMO function under one of these operators is either equal to infinity almost everywhere or is in BMO.
openaire   +3 more sources

How sensitive and specific are MRI features of sacroiliitis for diagnosis of spondyloarthritis

open access: yesJournal of the Belgian Society of Radiology, 2014
'Objective: 'To determine the sensitivity and specificity of MRI features of sacroiliitis in spondyloarthritis (SpA). 'Materials and methods': A retrospective study reviewed MRI of the sacroiliac (SI) joints in 517 patients with inflammatory back pain ...
L Jans   +8 more
doaj   +1 more source

Association between eyeball asymmetry and offset of openings in optic nerve head canal assessed by posterior polar eyeball topography

open access: yesScientific Reports
We investigated three-dimensional (3D) eyeball protrusion and its association with the offset between the lamina cribrosa (LC) and Bruch’s membrane opening (BMO). 3D-MRI scans were taken from 93 subjects (186 eyes).
Kyoung Min Lee   +6 more
doaj   +1 more source

A Remark on Carleson's Characterization of BMO [PDF]

open access: yesProceedings of the American Mathematical Society, 1980
L. Carleson showed that if φ ∈ BMO ( R n ) \varphi \in \text {BMO}(R ^n) and supp φ \varphi is compact, then φ \varphi can be written in the form φ ( x ) = Σ k
openaire   +1 more source

On Hardy and BMO Spaces for Grushin Operator

open access: yes, 2016
We study Hardy and BMO spaces associated with the Grushin operator. We first prove atomic and maximal functions characterizations of the Hardy space. Further we establish a version of Fefferman–Stein decomposition of BMO functions associated with the ...
Jacek Dziubański, K. Jotsaroop
semanticscholar   +1 more source

On BMO functions on Riemann surface [PDF]

open access: yesKyoto Journal of Mathematics, 1985
Let D be the unit disc in the plane, with hyperbolic measure \(d\lambda\) and area measure dm. Let BMO be the space of functions on bounded mean oscillation which are the object of intensive study for the past twenty years. Let BMOH(D) stand for those f harmonic on D such that f is the Poisson integral of some functions in BMO and let BMOA(D) be the ...
openaire   +3 more sources

BMO and PPST Approaches to Meson States in Broken SU4 Symmetry [PDF]

open access: bronze, 1976
Hirofumi Hayashi   +4 more
openalex   +1 more source

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