当前位置:
X-MOL 学术
›
J. Anal. Math.
›
论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
The Stein–Tomas inequality under the effect of symmetries
Journal d'Analyse Mathématique ( IF 1 ) Pub Date : 2023-06-20 , DOI: 10.1007/s11854-023-0282-3 Rainer Mandel , Diogo Oliveira e Silva
中文翻译:
对称性影响下的斯坦因-托马斯不等式
更新日期:2023-06-21
Journal d'Analyse Mathématique ( IF 1 ) Pub Date : 2023-06-20 , DOI: 10.1007/s11854-023-0282-3 Rainer Mandel , Diogo Oliveira e Silva
We prove new Fourier restriction estimates to the unit sphere \({\mathbb{S}^{d-1}}\) on the class of O(d − k) × O(k)-symmetric functions, for every d ≥ 4 and 2 ≤ k ≤ d − 2. As an application, we establish the existence of maximizers for the endpoint Stein–Tomas inequality within that class. Moreover, we construct examples showing that the range of Lebesgue exponents in our estimates is sharp.
中文翻译:
对称性影响下的斯坦因-托马斯不等式
我们证明了O ( d − k ) × O ( k ) 对称函数类上单位球面\({\mathbb{S}^{d-1}}\) 的新傅里叶限制估计,对于每个d ≥ 4 且 2 ≤ k ≤ d − 2。作为一个应用,我们在该类中建立端点 Stein-Tomas 不等式的最大化器的存在。此外,我们构建的例子表明,我们估计的勒贝格指数范围很窄。