Family 037Algebraic and complex geometryNo LeanNot yet digested
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 . Equality holds precisely for an analytic ordinary double point.
Manuscripts in this family · 2
The ordinary-double-point gap in every dimension
Sep 24, 2026·paper.pdf
We prove the ordinary-double-point gap conjecture for boundary-zero complex algebraic klt germs in every dimension: a singular n-dimensional germ has normalized volume at most , with equality precisely at an analytic ordinary double point.
The normalized-volume gap in dimension four
Sep 24, 2026·paper.pdf
We prove that every singular complex algebraic klt fourfold germ with zero boundary has normalized volume at most 162, with equality precisely for an analytic ordinary double point. This resolves the ordinary-double-point volume-gap conjecture in dimension four.