期刊信息
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- 刊名: 河北师范大学学报(自然科学版)Journal of Hebei Normal University (Natural Science)
- 主办: 河北师范大学
- ISSN: 1000-5854
- CN: 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
(Z2)k-actions with Fixed Point Set of Constant Codimension 2k+2(k-2)
摘要/Abstract
摘要:
设(Z2)k作用于光滑闭流形Mn,其不动点集具有常余维数r,Jn,kr是具有上述性质的未定向的n维上协边类[Mn]构成的集合。≥rJrn,k为未定向上协边环N*=≥rNn的理想。通过构造上协边环N*的一组生成元决定了理想J2k+2k-2。
Abstract:
Let Jrn,k denote the set of n-dimensional unoriented cobordism class in Nn containing a representative Mn admitting a(Z2)k-action with fixed point set of constant codimension r.Jr*,k=∑n≥rJrn,k is an idea of the unoriented cobordism ring N*=∑n≥rNn.The idea J2k+2k-2*,k is determined by constructing special generators of N*.
关键词
Key words:
cobordism class
;
(Z2)k-action fixed point set
;
projective space bundle