Titlebook: History of the IAU; The Birth and First Adriaan Blaauw Book 1994 Springer Science+Business Media Dordrecht 1994 Nation.Reform.astronomy.ob

LAP

陈腐的人

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 [S(V⊕R), S(V)]. → A(V) where A(V) = = [S(V⊕R).,S(V).]⊕(. Z), H⊂S. runs over all isotropy subgroups of V different from S..