Let M be an n-manifold with sectional curvature 0 < δ ≤ K ≤ 1. The main result asserts that the fundamental group of M has a finite normal cyclic subgroup with index less than w(n, δ) < ∞, a constant depending on n and δ.
All Science Journal Classification (ASJC) codes
- Statistics and Probability
- Statistics, Probability and Uncertainty