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总览 评价 赖旭东 , 丁勇 * ( 北京师范大学数学科学学院,北京 100875; ) 摘要: 本文建立了由Christ和Journ'e定义如下的交换子的弱(1,1)有界性:[ T[a_1,cdots,a_l]f(x)=pv int K(x-y)(prod_{i=1}^lm_{x,y}a_i)cdot f(y)dy, ]其中$K$是$mathbb{R}^d (
赖旭东, 丁勇*
(
北京师范大学数学科学学院,北京 100875; )
摘要:
本文建立了由Christ和Journ'e定义如下的交换子的弱(1,1)有界性:[ T[a_1,cdots,a_l]f(x)=pv int K(x-y)(prod_{i=1}^lm_{x,y}a_i)cdot f(y)dy, ]其中$K$是$mathbb{R}^d (dgeq2)$上的Calder'on-Zygmund卷积核, $m_{x,y}a_i=int_0^1a_i(sx+(1-s)y)ds$.
关键词:
高阶,Christ-Journ'e交换子,Calder'on-Zygmund卷积核, 弱(1,1)有界性
LAI Xudong, DING Yong*
(
School of Mathematical Sciences, Beijing Normal University, Beijing 100875; )
Abstract:
A weak type $(1,1)$ estimate is established for the high order commutator introduced by Christ and Journ'e which is defined by[ T[a_1,cdots,a_l]f(x)=pv int K(x-y)(prod_{i=1}^lm_{x,y}a_i)cdot f(y)dy, ]where $m_{x,y}a_i=int_0^1a_i(sx+(1-s)y)ds$ and $K$ is the Calder'on-Zygmund convolution kernel on $mathbb{R}^d (dgeq2)$.
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