Results 91 to 100 of about 4,962 (192)

Boundedness of Marcinkiewicz Integrals on RBMO Spaces over Nonhomogeneous Metric Measure Spaces

open access: yesJournal of Mathematics, 2015
Let X,d,μ be a metric measures space satisfying the upper doubling conditions and the geometrically doubling conditions in the sense of Hytönen. Under the assumption that the dominating function satisfies the weak reverse doubling condition, the authors ...
Ji Cheng, Guanghui Lu
doaj   +1 more source

Endpoint multiplier theorems of Marcinkiewicz type

open access: yes, 2000
We establish sharp (H^1, L^{1,q}) and local (L \log^r L, L^{1,q}) mapping properties for rough one-dimensional multipliers. In particular, we show that the multipliers in the Marcinkiewicz multiplier theorem map H^1 to L^{1,\infty} and L \log^{1/2} L to ...
Tao, Terence, Wright, Jim
core   +1 more source

On some properties of generalized Marcinkiewicz spaces [PDF]

open access: yesStudia Mathematica, 2001
Let \((X_0,X_1)\) be a couple of interpolation of Banach spaces, and, for \(t>0\), and \(x\in X_0+X_1\): \[ K(t,x)= \inf\{\|x_0\|_{X_0}+t \|x_1\|_{X_1}, \;x=x_0+x_1\} . \] For any quasiconcave function \(\varphi: (0,\infty)\to (0,\infty)\), the generalized Marcinkiewicz space \(M_\varphi=M_\varphi(X_0,X_1)\) is the set of \(x\in X_0+X_1\) for which \[ \
openaire   +1 more source

Almost Everywhere Strong Summability of two-dimensional Walsh-Fourier Series

open access: yes, 2016
It is proved a BMO-estimation for quadratic partial sums of two-dimensional Walsh-Fourier series from which it is derived an almost everywhere exponential summability of quadratic partial sums of double Walsh-Fourier series.Comment: arXiv admin note ...
Goginava, Ushangi
core  

Marcinkiewicz Functions along Flat Surfaces with Hardy Space Kernels [PDF]

open access: yesJournal of Integral Equations and Applications, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

A surprising formula for Sobolev norms. [PDF]

open access: yesProc Natl Acad Sci U S A, 2021
Brezis H, Van Schaftingen J, Yung PL.
europepmc   +1 more source

Marcinkiewicz integrals with variable kernels on Hardy and weak Hardy spaces

open access: yesJournal of Function Spaces and Applications, 2010
In this article, we consider the Marcinkiewicz integrals with variable kernels defined by μΩ(f)(x)=(∫0∞|∫|x−y|≤tΩ(x,x−y)|x−y|n−1f(y)dy|2dtt3)1/2, where Ω(x,z)∈L∞(ℝn)×Lq(Sn−1) for q > 1.
Xiangxing Tao, Xiao Yu, Songyan Zhang
doaj   +1 more source

Boundedness of a Class of Sublinear Operators and Their Commutators on Generalized Morrey Spaces

open access: yesAbstract and Applied Analysis, 2011
The authors study the boundedness for a large class of sublinear operator T generated by Calderón-Zygmund operator on generalized Morrey spaces Mp,φ.
Vagif S. Guliyev   +2 more
doaj   +1 more source

Fixed point properties for a degenerate Lorentz–Marcinkiewicz space

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2019
Fixed point properties of a renorming of \((\ell^1, \|\cdot\|_1)\) and a predual of the renormed space are investigated. If \(x = (x_n) \in \ell^1\), \(|||x||| = \|x\|_1 + \|x\|_\infty\) defines a norm on \(\ell^1\) equivalent to the canonical norm.
openaire   +2 more sources

Boundedness of higher-order Marcinkiewicz-Type integrals

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
Let A be a function with derivatives of order m and DγA∈Λ˙β ...
Shanzhen Lu, Huixia Mo
doaj   +1 more source

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