Geometry and topology · Oct 6, 2026

The ordinary-double-point volume gap

Proves the ordinary-double-point volume-gap conjecture: every singular complex algebraic klt germ of dimension n ≥ 2, with zero boundary, has normalized volume at most 2(n−1)n2(n-1)^n. Equality holds precisely for an analytic ordinary double point.

Contributors

Unreleased OpenAI model

AI systems: Unreleased OpenAI model

Sources