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arXiv · 2512.04757

Characterization of the continuity properties of maximal operators associated to critical radius functions via Dini type conditions

Fabio Berra·Marilina Carena·Gladis Pradolini
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Abstract

We give a characterization of the continuity properties of a Luxemburg maximal type operator associated to a critical radius function $\rho$ between Orlicz spaces. This goal is achieved by means of a Dini type condition that includes certain Young functions related to the maximal operator and the spaces involved. Our results provide not only weak Fefferman-Stein type inequalities but also a weak weighted estimate of modular type for the considered operators, which is interesting in its own right. On the other hand, we prove the boundedness of the Hardy-Littlewood maximal function associated to $\rho$ between Zygmund spaces of $L\,\log\,L$ type with $A_p$ weights.

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Fabio Berra, Marilina Carena, Gladis Pradolini. 2025-12-04. Characterization of the continuity properties of maximal operators associated to critical radius functions via Dini type conditions. https://arxiv.org/abs/2512.04757

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