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May 15, 2022 at 23:19 history became hot network question
May 15, 2022 at 20:48 vote accept Andromeda
May 15, 2022 at 18:43 history edited Andromeda CC BY-SA 4.0
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May 15, 2022 at 17:11 answer added Yemon Choi timeline score: 3
May 15, 2022 at 16:34 history edited Andromeda CC BY-SA 4.0
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May 15, 2022 at 16:34 comment added Andromeda @YemonChoi Yes thanks, I will edit.
May 15, 2022 at 16:27 comment added Yemon Choi Also (for others reading this question) Theorem 4.20 is the Pontrjagin duality theorem for locally compact abelian groups, although I think that the hypothesis of being abelian is not needed for the step which the OP is asking about.
May 15, 2022 at 16:25 comment added Yemon Choi According to my copy of Folland's book (2nd ed), just before Lemma 4.20 ${\mathcal B}^1$ is defined to be the intersection of ${\mathcal B}(G)$ with $L^1(G)$. Perhaps the notation in the book is not globally consistent?
May 15, 2022 at 15:14 history asked Andromeda CC BY-SA 4.0