Algebraic Topology
《Algebraic Topology》 · 第 344 页 · Section 14.4
If \(EG\to BG\) is a universal principal \(G\)-bundle, the space \(BG\) is called a classifying space of the group \(G\).
Algebraic Topology
《Algebraic Topology》 · 第 344 页 · Section 14.4
If \(EG\to BG\) is a universal principal \(G\)-bundle, the space \(BG\) is called a classifying space of the group \(G\).
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