The ideal-adic semi-continuity conjecture for minimal log discrepancies
The ideal-adic semi-continuity conjecture for minimal log discrepancies
Let be a klt variety, let be a closed point, and let denote the maximal ideal corresponding to . Ideal-adic semi-continuity conjecture. For every given , there exists such that, for any ideal sheaves and on satisfying
one has
This conjecture asserts that the minimal log discrepancy at is determined by a sufficiently high ideal-adic jet. The source attributes it to Mustață and Nakamura and presents it in a paper that gives a counterexample to a related conjectural property; the supplied text does not state that this conjecture itself is resolved.
Sources & referencesView supporting material
Primary source
Yusuke Nakamura and Kohsuke Shibata, “A counterexample to the PIA conjecture for minimal log discrepancies”, arXiv:2404.06164 (2026).
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