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arXiv 2501.04415math.AP
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Heisenberg群与$H$-型群上次拉普拉斯算子的精细化Strichartz估计

Refined Strichartz Estimates for sub-Laplacians in Heisenberg and $H$-type groups

Davide Barilari, Steven Flynn

AI总结:

本文利用Fourier限制与谱投影估计,将Heisenberg群上Schrödinger方程的Strichartz估计推广至非径向数据及$H$-型群,并涵盖波动方程。

摘要:

我们利用Fourier限制技术,得到了$H$-型Carnot群上次黎曼Schrödinger方程的精细化Strichartz估计。特别地,我们将此前针对Heisenberg群得到的已知Strichartz估计推广到非径向初始数据。同样的论证可用于获得$H$-型群上波动方程的精细化Strichartz估计。我们的证明基于次拉普拉斯算子谱投影子的估计,并在迹类算子值测度的背景下,将Strichartz估计重新解释为幂零群的Fourier限制定理。

英文摘要:

We obtain refined Strichartz estimates for the sub-Riemannian Schrödinger equation on $H$-type Carnot groups using Fourier restriction techniques. In particular, we extend the previously known Strichartz estimates previously obtained for the Heisenberg group also to non radial initial data. The same arguments permits to obtain refined Strichartz estimates for the wave equation on $H$-type groups. Our proof is based on estimates for the spectral projectors for sub-Laplacians and reinterprets Strichartz estimates as Fourier restriction theorems for nilpotent groups in the context of trace-class operator valued measures.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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