Uniformly equicontinuous sets, right multiplier topology, and continuity of convolution

Details Uniformly equicontinuous sets, right multiplier topology, and continuity of convolution Uniformly equicontinuous sets, right multiplier topology, and continuity of convolution

2012-02-20

arxiv.org/abs/1202.4350v1

Mathematics

Functional Analysis

9 pages

Scientific paper

The dual space of the C*-algebra of bounded uniformly continuous functions on a uniform space carries several natural topologies. One of these is the topology of uniform convergence on bounded uniformly equicontinuous sets, or the UEB topology for short. In the particular case of a topological group and its right uniformity, the UEB topology plays a significant role in the continuity of convolution. In this paper we derive a useful characterisation of bounded uniformly equicontinuous sets on locally compact groups. Then we demonstrate that for every locally compact group G the UEB topology on the space of finite Radon measures on G coincides with the right multiplier topology. In this sense the UEB topology is a generalisation to arbitrary topological groups of the multiplier topology for locally compact groups. In the final section we prove results about UEB continuity of convolution.

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