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2408.14258

MINIMAL MODEL PROGRAM FOR ALGEBRAICALLY INTEGRABLE ADJOINT FOLIATED STRUCTURES

Paolo Cascini, Jingjun Han, Jihao Liu, Fanjun Meng, Calum Spicer, Roberto Svaldi, Lingyao Xie

correctmedium confidence
Category
math.DS
Journal tier
Top Field-Leading
Processed
Sep 28, 2025, 12:56 AM

Audit review

The paper establishes the cone theorem, contraction theorem, and flips for algebraically integrable adjoint foliated structures, and deduces the existence of the K(X,F,B,M,t)-MMP (and with scaling) for Q‑factorial klt data (Theorems 1.3, 1.4, 1.5, 1.6), with preservation of key properties along the program (Lemma 8.1, Theorem 8.2) . The candidate solution invokes exactly this standard MMP skeleton: select a K‑negative extremal ray via a supporting function, contract it, flip if necessary, and iterate with scaling of an ample divisor. The only minor mismatch is that the candidate phrases the supporting-ray selection via a K+λA nef-threshold; in the paper this selection is formalized through a slightly different but equivalent device (Proposition 5.6 uses thresholds for D+s(K+A)) or directly by taking a supporting function HR=K+A, plus the contraction/flip package (Theorems 6.3, 6.9, 7.1). These are routine adjustments that do not affect correctness. Hence both are correct and follow substantially the same proof strategy.

Referee report (LaTeX)

\textbf{Recommendation:} minor revisions

\textbf{Journal Tier:} top field-leading

\textbf{Justification:}

The manuscript delivers a comprehensive MMP package for algebraically integrable adjoint foliated structures, unifying and extending prior progress. The methods (adjunction, qdlt modifications, generalized pairs) are carefully assembled and the core MMP steps are convincingly established. Minor presentational tweaks could further ease navigation and clarify the scaling setup, but the mathematical results appear both correct and impactful.