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arXiv 1607.07079math.FA
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球面谱综合

Spherical spectral synthesis

László Székelyhidi

摘要:

本文试图推广L. Schwartz关于多维谱综合的经典结果。由于D. I.这对于平移不变的变种是不可能的。我们的想法是用高维空间中的适当欧几里德运动来代替平移。为此目的,我们介绍的谱分析和合成的基本概念,在非交换设置的基础上Gelfand对,其中“平移不变性”将被取代的不变性相对于一个紧凑的自同构群。球函数将扮演指数函数的角色。作为应用,我们得到了L的扩张. Schwartz的基本结果。

英文摘要:

In this paper we make an attempt to extend L. Schwartz's classical result on spectral synthesis to several dimensions. Due to counterexamples of D. I. Gurevich this is impossible for translation invariant varieties. Our idea is to replace translations by proper euclidean motions in higher dimensions. For this purpose we introduce the basic concepts of spectral analysis and synthesis in the non-commutative setting based on Gelfand pairs, where "translation invariance" will be replaced by invariance with respect to a compact group of automorphisms. The role of exponential functions will be played by spherical functions. As an application we obtain the extension of L. Schwartz's fundamental result.

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