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arXiv · 2609.15514

Spherical maximal operators on rank one Riemannian symmetric spaces of noncompact type

Subir Dakshi·Sanjoy Pusti
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Abstract

The spherical maximal operator of order $μ$ was introduced by El Kohen in the setting of real hyperbolic spaces, where its $L^p$-boundedness properties were studied. In this paper, we extend this notion to rank-one Riemannian symmetric spaces of noncompact type. We establish sufficient conditions on the parameter $μ$ for the corresponding spherical maximal operator to be bounded on $L^p$ for $1<p\leq\infty$. We also obtain a necessary condition for $L^p$-boundedness when $μ$ is real and $1<p<\infty$. In particular, for $1<p\leq2$, the necessary condition agrees with the sufficient condition, yielding the sharp range of real $μ$ in this regime.

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Subir Dakshi, Sanjoy Pusti. 2026-09-14. Spherical maximal operators on rank one Riemannian symmetric spaces of noncompact type. https://arxiv.org/abs/2609.15514

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