The PIA conjecture for minimal log discrepancies
Let be a log pair over an algebraically closed field of characteristic zero, and let be a normal Cartier prime divisor on . Let be a closed point, and suppose that is not contained in the cosupport of the -ideal sheaf . PIA conjecture. One has
This is the precise inversion of adjunction conjecture for minimal log discrepancies. The paper describes it as a fundamental conjecture; the supplied text gives no complete resolution, although it notes known cases for klt pairs.
References
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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