设(M,T)是一个带有对合T的光滑闭流形.T的不动点集为F.本文决定了不动点集F=∪(i=1)^m RPi(3)×HPi(k)时对合的协边分类,其中HP(k)是k维四元数射影空间,且k=2^λ-2或k=2^λ-1(λ〉1).
Let(M,T) be a closed and smooth manifold with an involution T.The fixed point set of T is F.In this paper,we determine bordism classes of the involutions with fixed point set F=∪_(i=1)~m RP_i(3)×HP_i(k),where HP(k) is the k-dimensional quaternionic projective space,and k=2~λ-2 or k=2~λ-1(λ1).