Abstract
We study certain square functions on product spaces ℝn×ℝm, whose integral kernels are obtained from kernels which are homogeneous in each factor ℝn and ℝm locally in L(log+ L) away from ℝn×{0} and ℝm by means of polynomial distortions in the radial variable. As a model case, we obtain that the Marcinkiewicz integral operator is bounded on L p(ℝn×ℝm)(p>1) for Ω∈Llog+ L(S n−1×S m−1) satisfying the cancellation condition.
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Wang, M., Chen, J. & Fan, D. A note on certain square functions on product spaces. SCI CHINA SER A 49, 98–108 (2006). https://doi.org/10.1007/s11425-005-0101-6
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DOI: https://doi.org/10.1007/s11425-005-0101-6