The soul conjecture for open Alexandrov spaces
Let be an open Alexandrov space, let be a compact totally convex soul without boundary, and let be the Sharafutdinov projection.
Soul conjecture. If contains an open subset where the curvature is bounded below by a positive constant, then is a point.
This is a conjectured Alexandrov-geometric counterpart of the Riemannian soul theorem. The source notes that the submetry conjecture implies this conjecture, but gives no resolution.
References
Primary source
Xueping Li and Xiaochun Rong, “Open Alexandrov spaces of nonnegative curvature”, arXiv:2311.15174 (2025).
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