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31.
Zhang Pu Wu Huoxiong 《高校应用数学学报(英文版)》2005,20(4):455-461
Let μΩ,b be the commutator generalized by the n-dimensional Marcinkiewicz integral μΩ and a function b∈ BMO(R^n). It is proved that μΩ,bis bounded from the Hardy space H^1 (R^n) into the weak L^1(R^n) space. 相似文献
32.
We unify various constructions and contribute to the theory of singular symmetric functionals on Marcinkiewicz function/operator spaces. This affords a new approach to the non-normal Dixmier and Connes-Dixmier traces (introduced by Dixmier and adapted to non-commutative geometry by Connes) living on a general Marcinkiewicz space associated with an arbitrary semifinite von Neumann algebra. The corollaries to our approach, stated in terms of the operator ideal L(1,∞) (which is a special example of an operator Marcinkiewicz space), are: (i) a new characterization of the set of all positive measurable operators from L(1,∞), i.e. those on which an arbitrary Connes-Dixmier trace yields the same value. In the special case, when the operator ideal L(1,∞) is considered on a type I infinite factor, a bounded operator x belongs to L(1,∞) if and only if the sequence of singular numbers {sn(x)}n?1 (in the descending order and counting the multiplicities) satisfies . In this case, our characterization amounts to saying that a positive element x∈L(1,∞) is measurable if and only if exists; (ii) the set of Dixmier traces and the set of Connes-Dixmier traces are norming sets (up to equivalence) for the space , where the space is the closure of all finite rank operators in L(1,∞) in the norm ∥.∥(1,∞). 相似文献
33.
Yun Sung Choi 《Journal of Mathematical Analysis and Applications》2006,323(2):1116-1133
Let Ab(E) be the Banach algebra of all complex-valued bounded continuous functions on the closed unit ball BE of a complex Banach space E and holomorphic in the interior of BE and let Au(E) be the closed subalgebra of those functions which are uniformly continuous on BE. For the case whose bidual is a Marcinkiewicz sequence space Mw, we describe some sufficient conditions for a set to be a boundary of either Ab(E) or Au(E). Moreover, we consider some analogous problems on to those which were studied on the Gowers space Gp of characteristic p by Grados and Moraes [L.R. Grados, L.A. Moraes, Boundaries for algebras of holomorphic functions, J. Math. Anal. Appl. 281 (2003) 575-586; L.R. Grados, L.A. Moraes, Boundaries for an algebra of bounded holomorphic functions, J. Korean Math. Soc. 41 (1) (2004) 231-242]. 相似文献
34.
在测度μ仅满足多项式增长性条件的假设下,证明了Marcinkiewicz积分算子M与Lipβ(μ)函数b生成的交换子Mb具有(H1(μ), Ln/(n?β)(μ))有界性,同时得到Mb的(Ln/β(μ), RBMO(μ))有界性. 相似文献
35.
36.
Hung Viet Le 《Journal of Mathematical Analysis and Applications》2008,345(2):903-916
In this paper, we study the singular integral
37.
Xiaomei Wu 《分析论及其应用》2008,24(2):139-148
Let→b=(b1,b2,…,bm),bi∈∧βi(Rn),1≤I≤m,βi>0,m∑I=1βi=β,0<β<1,μΩ→b(f)(x)=(∫∞0|F→b,t(f)(x)|2dt/t3)1/2,F→b,t(f)(x)=∫|x-y|≤t Ω(x,x-y)/|x-y|n-1 mΠi=1[bi(x)-bi(y)dy.We consider the boundedness of μΩ,→b on Hardy type space Hp→b(Rn). 相似文献
38.
利用Maxcinkiewicz积分算子μ,Lusin面积积分μs和Littlewood-Paley g_λ~*函数以及相应的交换子在变指标Lebesgue空间上的有界性,得到了它们在变指标Morrey空间上的有界性结果. 相似文献
39.
N. Kruglyak E. A. Kuznetsov 《Proceedings of the American Mathematical Society》2007,135(10):3283-3293
The Marcinkiewicz integral plays a well-known and prominent role in harmonic analysis. In this paper, we estimate the growth of it in the limiting case . Throughout, we assume that is convex; it is interesting that this condition cannot be dropped.
40.
We prove the Lp boundedness of Marcinkiewicz integral operators with rough kernels on ℝn and T n. 相似文献