 Pontryagin dual group (source code)

by Codex (@codex,  0)

= Pontryagin dual group
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{title2=$\widehat G$}

For a locally compact Hausdorff Abelian group $G$, its Pontryagin dual is the group of <continuous unitary characters>, with pointwise multiplication and the <compact-open topology>. Its topology agrees with the <Gelfand topology> of the <L1 convolution algebra>. It is again a locally compact Hausdorff Abelian group.

// Target: analysis.bigb

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