LAP 发表于 2025-3-30 09:40:19

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陈腐的人 发表于 2025-3-30 15:49:38

Let V be an orthogonal representation of G=S. and let S(V), S(V⊕R) be the unit spheres in V, V⊕R respectively. In this paper we classify S.-equivariant maps S(V⊕R) → S(V). More precisely we construct an isomorphism . → A(V) where A(V) = = ⊕(. Z), H⊂S. runs over all isotropy subgroups of V different from S..
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查看完整版本: Titlebook: History of the IAU; The Birth and First Adriaan Blaauw Book 1994 Springer Science+Business Media Dordrecht 1994 Nation.Reform.astronomy.ob