J Austral Math Soc Ser A 45 pp11--29, 1988.
(Received 3 December 1986)
Let G be any compact group, connected or disconnected, with dual objectÙG. We define a family of local Sidon subsets ofÙG in terms of allowable images of the representations. Using this family we develop a straightforward criterion whereby the existence of infinite Sidon subsets ofÙG may be decided.
1980 AMS Subject Classification: 43A46
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