The Calderon-Zygmund Theorem with an L^1 Mean Hormander Condition
The Calderon-Zygmund Theorem with an L^1 Mean Hormander Condition
复制标题
具有 L^1 平均 Hormander 条件的 Calderon-Zygmund 定理
DOI:
10.1007/s00041-021-09810-9
复制
发表时间:
2021
影响因子:
1.2
通讯作者:
Soichiro Suzuki
中科院分区:
文献类型:
--
作者:
Yuta Tarumi;Kenta Hotokezaka;Nanae Domoto;Masaomi Tanaka;Soichiro Suzuki
In 2019, Grafakos and Stockdale introduced anmean Hörmander condition and proved a “limited-range” Calderón–Zygmund theorem. Comparing their theorem with the classical one, it requires weaker assumptions and implies theboundedness for the “limited-range” instead of. However, in this paper, we show that themean Hörmander condition is actually enough to obtain theboundedness for alleven in the worst case. We use a similar method to that used by Fefferman (Acta Math 124:9–36, 1970): form the Calderón–Zygmund decomposition with the bounded overlap property and approximate the bad part. Also we give a criterion of theboundedness for convolution type singular integral operators under themean Hörmander condition.