Algebraic Topology
《Algebraic Topology》 · 第 343 页 · Section 4.1
Spaces with \(\pi_n=0\) for all \(n\ge 2\) are sometimes called aspherical.
Algebraic Topology
《Algebraic Topology》 · 第 343 页 · Section 4.1
Spaces with \(\pi_n=0\) for all \(n\ge 2\) are sometimes called aspherical.
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