Rough bilinear singular integrals
Rough bilinear singular integrals
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粗双线性奇异积分
DOI:
10.1016/j.aim.2017.12.013
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发表时间:
2018
影响因子:
1.7
通讯作者:
Honzik Petr
中科院分区:
文献类型:
--
作者:
Grafakos Loukas;He Danqing;Honzik Petr
We study the rough bilinear singular integral, introduced by Coifman and Meyer [8], T Ω (f, g)(x)= pv∫ R n∫ R n|(y, z)|− 2 n Ω ((y, z)/|(y, z)|) f (x− y) g (x− z) d y d z, when Ω is a function in L q (S 2 n− 1) with vanishing integral and 2≤ q≤∞. When q=∞ we obtain boundedness for T Ω from L p 1 (R n)× L p 2 (R n) to L p (R n) when 1< p 1, p 2<∞ and 1/p= 1/p 1+ 1/p 2. For q= 2 we obtain that T Ω is bounded from L 2 (R n)× L 2 (R n) to L 1 (R n). For q between 2 and infinity we obtain the analogous boundedness on a set of indices around the point (1/2, 1/2, 1). To obtain our results we introduce a new bilinear technique based on tensor-type wavelet decompositions.