p-Fourier algebras on compact groups

被引:0
|
作者
Lee, Hun Hee [1 ,2 ]
Samei, Ebrah M. [3 ]
Spronk, Nico [4 ]
机构
[1] Seoul Natl Univ, Dept Math Sci, San56-1 Shinrim Dong, Seoul 151747, South Korea
[2] Seoul Natl Univ, Res Inst Math, San56-1 Shinrim Dong, Seoul 151747, South Korea
[3] Univ Saskatchewan, Dept Math & Stat, Room 142 McLean Hall,106 Wiggins Rd, Saskatoon, SK S7N 5E6, Canada
[4] Univ Waterloo, Dept Pure Math, Waterloo, ON N2L 3G1, Canada
基金
新加坡国家研究基金会; 加拿大自然科学与工程研究理事会;
关键词
Compact group; Fourier series; operator weak amenability; operator amenability; Arens regularity; BOUNDED APPROXIMATE IDENTITIES; WEAK AMENABILITY; TENSOR-PRODUCTS; OPERATOR AMENABILITY; BANACH; REPRESENTATIONS; MULTIPLICATION; CONVOLUTIONS; REGULARITY; ASTERISK;
D O I
10.4171/RMI/1033
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let G be a compact group. For 1 <= p <= infinity we introduce a class of Banach function algebras A(p)(G) on G which axe the Fourier algebras in the case p = 1, and for p = 2 are certain algebras discovered by Forrest, Samei and Spronk. In the case p not equal 2 we find that A(p)(G) congruent to A(p)(H) if and only if G and H are isomorphic compact groups. These algebras admit natural operator space structures, and also weighted versions, which we call p-Beurling-Fourier algebras. We study various amenability and operator amenability properties, Arens regularity and representability as operator algebras. For a connected Lie G and p > 1, our techniques of estimation of when certain p-Beurling-Fourier algebras are operator algebras rely more on the fine structure of G, than in the case p = 1. We also study restrictions to subgroups. In the case that G = SU(2), restrict to a torus and obtain some exotic algebras of Laurent series. We study amenability properties of these new algebras, as well.
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页码:1469 / 1514
页数:46
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