Differential Forms in Algebraic Topology
《Differential Forms in Algebraic Topology》 · 第 47 页 · Section 6
The Künneth formula gives \(H^*(M\times F)=H^*(M)\otimes H^*(F)\), hence \(H^n(M\times F)=\bigoplus_{p+q=n}H^p(M)\otimes H^q(F)\).