scholarly journals The Boundedness of Commutators of Singular Integral Operators with Besov Functions

2010 ◽  
Vol 8 (3) ◽  
pp. 245-256
Author(s):  
Xionglue Gao ◽  
Bolin Ma
Keyword(s):  
Integral Operator ◽  
Singular Integral Operator ◽  
Singular Integral ◽  
Integral Operators ◽  
Singular Integral Operators

In this paper, we prove the boundedness of commutator generated by singular integral operator and Besov function from someLdto Triebel-Lizorkin spaces.

scholarly journals Estimates of multilinear singular integral operators and mean oscillation

2014 ◽  
Vol 95 (109) ◽  
pp. 201-214
Author(s):  
Lanzhe Liu
Keyword(s):  
Integral Operator ◽  
Singular Integral Operator ◽  
Singular Integral ◽  
Orlicz Spaces ◽  
Integral Operators ◽  
Singular Integral Operators ◽  
Multilinear Operators ◽  
Lebesgue Spaces ◽  
Marcinkiewicz Operator ◽  
Mean Oscillation

We prove the boundedness properties for some multilinear operators related to certain integral operators from Lebesgue spaces to Orlicz spaces. The operators include Calder?n-Zygmund singular integral operator, Littlewood-Paley operator and Marcinkiewicz operator.

scholarly journals Boundedness of Singular Integral Operators with Variable Kernels on Weighted Weak Hardy Spaces

2014 ◽  
Vol 2014 ◽  
pp. 1-6
Author(s):  
Hua Wang
Keyword(s):  
Integral Operator ◽  
Singular Integral Operator ◽  
Singular Integral ◽  
Hardy Spaces ◽  
Atomic Decomposition ◽  
Integral Operators ◽  
Singular Integral Operators ◽  
Variable Kernel ◽  
Decomposition Theory

Let TΩ be the singular integral operator with variable kernel Ω(x,z). In this paper, by using the atomic decomposition theory of weighted weak Hardy spaces, we will obtain the boundedness properties of TΩ on these spaces, under some Dini type conditions imposed on the variable kernel Ω(x,z).

Estimates for maximal singular integral operators in non-homogeneous spaces

2006 ◽  
Vol 136 (2) ◽  
pp. 351-364 ◽  
Author(s):  
Guoen Hu ◽  
Yan Meng ◽  
Dachun Yang
Keyword(s):  
Integral Operator ◽  
Singular Integral Operator ◽  
Singular Integral ◽  
Homogeneous Spaces ◽  
Integral Operators ◽  
Singular Integral Operators ◽  
Standard Size ◽  
Hörmander Condition ◽  
Size Condition ◽  
Maximal Singular Integral

Under the assumption that the Radon measure μ on Rd satisfies only some growth condition, the authors prove that, for the maximal singular integral operator associated with a singular integral whose kernel only satisfies a standard size condition and the Hörmander condition, its boundedness in Lebesgue spaces Lp(μ) for any p ∈ (1, ∞) is equivalent to its boundedness from L1(μ) into weak L1(μ). As an application, the authors verify that if the truncated singular integral operators are bounded on L2(μ) uniformly, then the associated maximal singular integral operator is also bounded on Lp(μ) for any p ∈ (1, ∞).

On the Commutators of Singular Integral Operators with Rough Convolution Kernels

2016 ◽  
Vol 68 (4) ◽  
pp. 816-840
Author(s):  
Xiaoli Guo ◽  
Guoen Hu
Keyword(s):  
Integral Operator ◽  
Singular Integral Operator ◽  
Singular Integral ◽  
Maximal Operator ◽  
Integral Operators ◽  
Mean Value ◽  
Morrey Spaces ◽  
Singular Integral Operators ◽  
Degree Zero ◽  
Convolution Kernels

AbstractLet TΩ be the singular integral operator with kernel , where Ω is homogeneous of degree zero, has mean value zero, and belongs to Lq(Sn–1) for some q ∊ (1,∞). In this paper, the authors establish the compactness on weighted Lp spaces and the Morrey spaces, for the commutator generated by CMO(ℝn) function and TΩ. The associated maximal operator and the discrete maximal operator are also considered.

scholarly journals Multilinear strongly singular integral operators with generalized kernels and applications

2021 ◽  
Vol 6 (12) ◽  
pp. 13533-13551
Author(s):  
Shuhui Yang ◽  
◽  
Yan Lin
Keyword(s):  
Integral Operator ◽  
Singular Integral Operator ◽  
Singular Integral ◽  
Variable Exponent ◽  
Integral Operators ◽  
Singular Integral Operators ◽  
Lebesgue Spaces ◽  
Weighted Lebesgue Spaces ◽  
Variable Exponent Lebesgue Spaces

<abstract><p>In this paper, the authors study the boundedness properties of a class of multilinear strongly singular integral operator with generalized kernels on product of weighted Lebesgue spaces and product of variable exponent Lebesgue spaces, respectively. Moreover, the types $ L^{\infty}\times \dots \times L^{\infty}\rightarrow BMO $ and $ BMO\times \dots \times BMO\rightarrow BMO $ endpoint estimates are also obtained.</p></abstract>

scholarly journals Continuity for some multilinear operators of integral operators on Triebel-Lizorkin spaces

2004 ◽  
Vol 2004 (38) ◽  
pp. 2039-2047
Author(s):  
Liu Lanzhe
Keyword(s):  
Integral Operator ◽  
Singular Integral Operator ◽  
Singular Integral ◽  
Fractional Integral ◽  
Integral Operators ◽  
Singular Integral Operators ◽  
Fractional Integral Operator ◽  
Multilinear Operators

The continuityfor some multilinear operators related to certain fractional singular integral operators on Triebel-Lizorkin spaces is obtained. The operators include Calderon-Zygmund singular integral operator and fractional integral operator.

scholarly journals Commutators of Singular Integral Operators Satisfying a Variant of a Lipschitz Condition

2014 ◽  
Vol 2014 ◽  
pp. 1-11
Author(s):  
Pu Zhang ◽  
Daiqing Zhang
Keyword(s):  
Integral Operator ◽  
Singular Integral Operator ◽  
Lipschitz Condition ◽  
Singular Integral ◽  
Weak Type ◽  
Integral Operators ◽  
Singular Integral Operators ◽  
Multilinear Commutator

LetTbe a singular integral operator with its kernel satisfying|K(x-y)-∑k=1ℓ‍Bk(x)ϕk(y)|≤C|y|γ/|x-y|n+γ,|x|>2|y|>0, whereBkandϕk  (k=1,…,ℓ)are appropriate functions andγandCare positive constants. Forb→=(b1,…,bm)withbj∈BMO(ℝn), the multilinear commutatorTb→generated byTandb→is formally defined byTb→f(x)=∫ℝn∏j=1m‍(bj(x)-bj(y))K(x,y)f(y)dy. In this paper, the weightedLp-boundedness and the weighted weak typeLlog⁡Lestimate for the multilinear commutatorTb→are established.

scholarly journals A boundedness result for Marcinkiewicz integral operator

2020 ◽  
Vol 18 (1) ◽  
pp. 829-836
Author(s):  
Laith Hawawsheh ◽  
Mohammad Abudayah
Keyword(s):  
Integral Operator ◽  
Singular Integral ◽  
Integrability Condition ◽  
Integral Operators ◽  
Singular Integral Operators ◽  
Marcinkiewicz Integral ◽  
Radial Functions ◽  
New Space ◽  
Marcinkiewicz Integral Operator ◽  
Boundedness Result

Abstract We extend a boundedness result for Marcinkiewicz integral operator. We find a new space of radial functions for which this class of singular integral operators remains {L}^{p} -bounded when its kernel satisfies only the sole integrability condition.

Multi-parameter Singular Integrals II: General Theory

2017 ◽  
Author(s):  
Brian Street
Keyword(s):  
General Theory ◽  
Singular Integral ◽  
Singular Integrals ◽  
Integral Operators ◽  
Singular Integral Operators ◽  
Main Issue

This chapter turns to a general theory which generalizes and unifies all of the examples in the preceding chapters. A main issue is that the first definition from the trichotomy does not generalize to the multi-parameter situation. To deal with this, strengthened cancellation conditions are introduced. This is done in two different ways, resulting in four total definitions for singular integral operators (the first two use the strengthened cancellation conditions, while the later two are generalizations of the later two parts of the trichotomy). Thus, we obtain four classes of singular integral operators, denoted by A1, A2, A3, and A4. The main theorem of the chapter is A1 = A2 = A3 = A4; i.e., all four of these definitions are equivalent. This leads to many nice properties of these singular integral operators.

The Calder´on-Zygmund Theory I: Ellipticity

2017 ◽  
Author(s):  
Brian Street
Keyword(s):  
Classical Theory ◽  
Singular Integral ◽  
Singular Integrals ◽  
Differential Operators ◽  
Integral Operators ◽  
Singular Integral Operators ◽  
Single Parameter ◽  
Partial Differential ◽  
Translation Invariant ◽  
Partial Differential Operators

This chapter discusses a case for single-parameter singular integral operators, where ρ‎ is the usual distance on ℝn. There, we obtain the most classical theory of singular integrals, which is useful for studying elliptic partial differential operators. The chapter defines singular integral operators in three equivalent ways. This trichotomy can be seen three times, in increasing generality: Theorems 1.1.23, 1.1.26, and 1.2.10. This trichotomy is developed even when the operators are not translation invariant (many authors discuss such ideas only for translation invariant, or nearly translation invariant operators). It also presents these ideas in a slightly different way than is usual, which helps to motivate later results and definitions.

Sign in / Sign up

Export Citation Format

Share Document