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具有常余维数2k+5不动点集的(Z2)k作用

Commuting Involutions with Fixed Point Set of Constant Codimension 2k + 5
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摘要 设(Z2)k作用于光滑闭流形Mn上,其不动点集具有常维数n-r,Jrn,k是具有上述性质的未定向的n维上协边类[Mn]构成的集合.通过构造上协边环MO*的一组生成元决定了J2*k,+k 5的结构. Let Jnr,k denote the set of n-dimensional cobordism classes containing a representative. Mn admitting a (Z2)k-action with fixed point set of constant codimension r. Special generators of the unoriented cobordism ring MO. are constructed to determine the groups J2*k,+k 5.
出处 《河北师范大学学报(自然科学版)》 CAS 北大核心 2012年第4期344-349,共6页 Journal of Hebei Normal University:Natural Science
基金 国家自然科学基金(10971050) 河北省自然科学基金(A2011205075) 河北师范大学一般基金(L2008Y01)
关键词 上协边类 (Z2)k作用 不动点集 射影丛 cobordism class ( Z2) k-action fixed point set projective bundle
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