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Article Dans Une Revue Pure and Applied Mathematics Quarterly Année : 2022

Even sets of nodes and Gauss genus theory

Résumé

We observe that a lemma used in the study of even sets of nodes on surfaces applies almost verbatim to prove a celebrated formula of Gauss on the 2-torsion of the class group of a quadratic field.

Dates et versions

hal-03275348 , version 1 (01-07-2021)

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Citer

Arnaud Beauville. Even sets of nodes and Gauss genus theory. Pure and Applied Mathematics Quarterly, 2022, 18 (4), pp.1355-1363. ⟨10.4310/PAMQ.2022.v18.n4.a3⟩. ⟨hal-03275348⟩
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