Demailly–Peternell–Schneider conjecture on Albanese maps with nef anticanonical bundle

Let XX be a compact Kähler manifold such that KX-K_X is nef, and let p:XYp:X\rightarrow Y be its Albanese map. Demailly–Peternell–Schneider conjecture. The map pp is locally trivial: for any small open set UYU\subset Y, p1(U)p^{-1}(U) is biholomorphic to the product U×FU\times F, where FF is the generic fibre of pp. In particular, pp is a submersion. This conjecture was proved for projective manifolds in the paper itself, and was already known under stronger assumptions such as nefness of TXT_X, hermitian positivity of KX-K_X, or bigness of the anticanonical bundle of the generic fibre; the general compact Kähler case is therefore the remaining broader setting.

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Primary source

Junyan Cao, “Albanese maps of projective manifolds with nef anticanonical bundles”, arXiv:1612.05921 (2018).

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