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arXiv · 1906.04627

Circular maximal functions on the Heisenberg group

Joonil Kim
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Abstract

We prove the $L^p$ boundedness of the circular maximal function on the Heisenberg group $\mathbb{H}^1$ for $2<p\le \infty$. The proof is based on the square sum estimate associated with the $2\times 2$ cone $|(ξ_1',ξ_2')|= |(ξ_3',ξ_4')| $ of the phase space arising from the vector fields $X_1,X_2,tX_3,\partial/\partial t$ on the Heisenberg group, rather than the $2\times 1$ cone $ |(ξ_1,ξ_2)|= |ξ_3|$ of the frequency space arising from $\partial/\partial x_1, \partial/\partial x_2, \partial/\partial t$ on the Euclidean space.

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Joonil Kim. 2022-10-17. Circular maximal functions on the Heisenberg group. https://arxiv.org/abs/1906.04627

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