On existence of extremizers for the Tomas-Stein inequality for $S^1$
On existence of extremizers for the Tomas-Stein inequality for $S^1$
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关于 $S^1$ 的 Tomas-Stein 不等式极端化的存在
DOI:
10.1016/j.jfa.2016.02.019
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Shuanglin Shao
中科院分区:
文献类型:
--
作者:
Shuanglin Shao
Abstract The Tomas–Stein inequality or the adjoint Fourier restriction inequality for the sphere S 1 states that the mapping f↦ f σ ˆ is bounded from L 2 (S 1) to L 6 (R 2). We prove that there exists an extremizer for this inequality. We also prove that any extremizer satisfies| f (− x)|=| f (x)| for almost every x∈ S 1.
影响因子:
2.2
作者:
Bennett J
通讯作者:
Bennett J