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arXiv · 2206.15230

Note on Tamagawa numbers of tori attached to CM algebras

Yasuhiro Oki
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Abstract

We prove that any integer power of $2$ can be realized as the Tamagawa number of a torus attached to a CM algebra considered by Guo Sheu Yu and Liang Yang Yu. Such a result is obtained by Liang Yang Yu under assuming "a generalized Landau conjecture". The main contribution of this paper is to remove the above assumption.

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Yasuhiro Oki. 2022-06-30. Note on Tamagawa numbers of tori attached to CM algebras. https://arxiv.org/abs/2206.15230

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