首都师范大学学报(自然科学版)2026,Vol.47Issue(1):1-13,27,14.DOI:10.19789/j.1004-9398.2026.01.001
正截面曲率流形的基本群
Fundamental groups of manifolds of positive sectional curvature
摘要
Abstract
Let M be a compact n-manifold of positive sectional curvature.We will review classical results on the fundamental group of M,a motivation on the c(n)-cyclic conjecture that the fundamental group of M contains a cyclic subgroup of index bounded above by c(n),a constant depending only on n,and we will survey partial results(up to date)on the c(n)-cyclic conjecture.关键词
正界面曲率/几乎循环基本群猜想/等变Gromov-Hausdorff收敛/亚历山大空间几何Key words
positive sectional curvature/conjecture on almost cyclic fundamental groups/equivariant Gromov-Hausdorff convergence/Alexandrov geometry分类
数理科学引用本文复制引用
戎小春..正截面曲率流形的基本群[J].首都师范大学学报(自然科学版),2026,47(1):1-13,27,14.基金项目
国家自然科学基金项目(11821101) (11821101)
北京市自然科学基金项目(Z190003) (Z190003)
首都师范大学基金项目 ()