Foundation item: the National Natural Science Foundation of China (No. 10371029); the Natural Science Foundation of Hebei Province (No. 103144).
Let (M^2m+4n+k-2, T) be a smooth closed manifold with a smooth involution T whose fixed point set is RP(2^m) ∪ P(2^m, 2n - 1) (m 〉 3, n 〉 0). For 2n ≥ 2^m, (M^2m+4n+k-2, T) is bordant to (P(2^m, RP...
Foundation item: the National Natural Science Foundation of China (No. 10371029); the Natural Science Foundation of Hebei Province (No. 103144); the Foundation of Hebei Normal University (No. L2005B03) and the Funds of Hebei Province for Doctorate (No. 201006).
The possible form of the total Stiefel-Whitney classes of vector bundles on CP(n)× CP(m) is determined in this paper.