Properties of the Maximal Functions Associated to Bases of Rectangles in ℝ³

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Abstract

<div class="line" id="line-151"> This paper is an attempt to understand a phenomenon of maximal operators associated with bases of three-This paper is an attempt to understand a phenomenon of maximal operators associated with bases of three-dimensional rectangles of dimensions ( <i> t </i> , 1/ <i> t </i> , <i> s </i> ) within a framework of more general Soria bases. The Jessen&ndash;Marcinkiewicz&ndash;Zygmund Theorem implies that the maximal operator associated with a Soria basis continuously maps <i> L </i> log&sup2; <i> L </i> into <i> L </i> &sup1;,&infin;. We give a simple geometric condition that guarantees that the <i> L </i> log&sup2; <i> L </i> class cannot be enlarged. The proof develops the author&rsquo;s methods applied previously in the two-dimensional case and is related to theorems of C&oacute;rdoba, Soria and Fe&fflig;erman and Pipher.</div>
Original languageAmerican English
JournalProceedings of Edinburgh Mathematical Society
Volume51
DOIs
StatePublished - Jun 2008

Disciplines

  • Mathematics

Keywords

  • Differentiation bases
  • Maximal operators
  • Primary 42B25
  • Soria bases

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