Restriction Theorems for Anisotropically Homogeneous Hypersurfaces of

Restriction Theorems for Anisotropically Homogeneous Hypersurfaces of
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各向异性齐次超曲面的限制定理

DOI:
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发表时间:
2008
期刊:
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通讯作者:
M. Urciuolo
M. Urciuolo
中科院分区:
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文献类型:
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作者:
E. Ferreyra;M. Urciuolo

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摘要对于和β 1,. . .,β?1、定义为,?是开单位球,令∑ = {(?,φ(?)): ?∈?}。为了让??:Σ → Σ可以定义为其中表示?的通常傅立叶变换。设σ是∑上的Borel测度,σ(?)?χ?(?,φ(?))??然后呢?是为操作员设置的类型吗?即存在的对的集合?> 0,对于所有本文得到了一个包含在?中的多边形区域。我们也给出了一个对的必要条件。在某些情况下,该结果在端点处是尖锐的。
Abstract For and β 1, . . . , β ? > 1 let be defined by , let ? be the open unit ball in and let ∑ = {(?, φ (?)) : ? ∈ ?}. For let ?? : ∑ → ℂ be defined by where denotes the usual Fourier transform of ?. Let σ be the Borel measure on ∑ defined by σ (?) = ∫? χ ? (?, φ (?)) ?? and ? be the type set for the operator ?, i.e. the set of pairs for which there exists ? > 0 such that for all . In this paper we obtain a polygonal domain contained in ?. We also give necessary conditions for a pair . In some cases this result is sharp up to endpoints.