Formes quadratiques multiplicatives et variétés algébriques
نویسندگان
چکیده
منابع مشابه
Formes quadratiques de discriminants emboîtés
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Solution 12.1. Let ∑ α∈A ηα be a partition of unity supported on the coordinate charts of the orientable manifold. Let φα : Uα → Rn be the orientable coordinate charts, and let xα, . . . , xα. Then for each α define an n form on M by ωα = ηαdxα∧ · · · ∧dxα. This is smooth in Uα because it is a product of a smooth form and function. Outside of Uα the form is zero in a neighbourhood of every poin...
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ژورنال
عنوان ژورنال: Bulletin de la Société mathématique de France
سال: 1978
ISSN: 0037-9484,2102-622X
DOI: 10.24033/bsmf.1865