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Zygmund type and flag type maximal functions, and sparse operators

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 نشر من قبل Ji Li
 تاريخ النشر 2020
  مجال البحث
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We prove that the maximal functions associated with a Zygmund dilation dyadic structure in three-dimensional Euclidean space, and with the flag dyadic structure in two-dimensional Euclidean space, cannot be bounded by multiparameter sparse operators associated with the corresponding dyadic grid. We also obtain supplementary results about the absence of sparse domination for the strong dyadic maximal function.



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