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Finite ordinary minimal model programs on compact Kähler fourfolds

OpenAI

OpenAI Mathopenai-math/Finite-ordinary-minimal-model-programs-on-compact-Kahler-fourfoldsOct 6, 2026math.AGAI-generatedscore 0

We prove that every maximal ordinary negative-ray program starting from a compact Kähler klt fourfold pair with effective rational boundary in the global Weil-divisor ℚ-factorial category terminates. It ends at a nef model when the adjoint is pseudo-effective and at a projective Mori fibre space otherwise.

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