The metric Blaschke conjecture. Proves the metric Blaschke conjecture: every closed connected Riemannian manifold of positive dimension whose injectivity radius equals its diameter is, up to scaling, a standard compact rank-one symmetric space.
released 2026-09-23 | 6 theorems · 8 lemmas · 26 proofs · 16,923 words |
PLAY LEVEL 1 »(pdf)
We prove the metric Blaschke conjecture: every connected closed smooth Riemannian manifold of positive dimension whose global injectivity radius equals its diameter is, up to scale, a standard compact rank-one symmetric space.