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arXiv 1508.01092math.OAmath.CAmath.FAmath.RT
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局部紧群上卷积代数和Fourier代数的新变形

New deformations of Convolution algebras and Fourier algebras on locally compact groups

Hun Hee Lee, SangGyun Youn

摘要:

本文介绍了局部紧群上卷积代数和Fourier代数的一种新的变形方法。通过考察变形代数的巴拿赫代数性质,我们证明了这种新的变形可以揭示基础群的一些信息.更准确地说,我们关注的是作为紧连接李群上变形卷积代数的算子代数的可表示性,并与基础群的实维度有关。类似地,我们研究了变形傅立叶代数作为算子代数的完全可表示性,并将其与群的增长率联系起来。

英文摘要:

In this paper we introduce a new way of deforming convolution algebras and Fourier algebras on locally compact groups. We demonstrate that this new deformation allows us to reveal some informations of the underlying groups by examinining Banach algebra properties of deformed algebras. More precisely, we focus on representability as an operator algebra of deformed convolution algebras on compact connected Lie groups with connection to the real dimension of the underlying group. Similary, we investigate complete representability as an operator algebra of deformed Fourier algebras on some finitely generated discrete groups with connection to the growth rate of the group.

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