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arXiv · 2310.12604

Bochner-Riesz mean for the twisted Laplacian in $\mathbb R^2$

Eunhee Jeong·Sanghyuk Lee·Jaehyeon Ryu
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Abstract

We study the Bochner-Riesz problem for the twisted Laplacian $\mathcal L$ on $\mathbb R^2$. For $p\in [1, \infty]\setminus\{2\}$, it has been conjectured that the Bochner-Riesz means $S_\lambda^\delta(\mathcal L) f$ of order $\delta$ converges in $L^p$ for every $f\in L^p$ if and only if $\delta> \max(0,|(p-2)/p|-1/2)$. We prove the conjecture by obtaining uniform $L^p$ bounds on $S_\lambda^\delta(\mathcal L)$ up to the sharp summability indices.

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Eunhee Jeong, Sanghyuk Lee, Jaehyeon Ryu. 2023-10-19. Bochner-Riesz mean for the twisted Laplacian in $\mathbb R^2$. https://arxiv.org/abs/2310.12604

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