The weak Albanese conjecture for compact Kähler C-pairs

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Let (X,D)(X,D) be a C-pair, meaning a pair consisting of a complex space XX and a boundary divisor DD with Campana's orbifold multiplicities, and suppose that XX is compact Kähler. A weak Albanese is a normal analytic variety Z∘Z^{\circ} equipped with a morphism

walb⁡(X,D)∘:X∘→Z∘\operatorname{walb}(X,D)^{\circ}:X^{\circ}\to Z^{\circ}

that satisfies the universal property given in the source. Weak Albanese conjecture. A weak Albanese of (X,D)(X,D) exists; the variety Z∘Z^{\circ} and the morphism walb⁡(X,D)∘\operatorname{walb}(X,D)^{\circ} are unique up to unique isomorphism, and the group Aut⁡O(X)\operatorname{Aut}_{\mathcal O}(X) acts on Z∘Z^{\circ} so that walb⁡(X,D)∘\operatorname{walb}(X,D)^{\circ} is equivariant. This is proposed for arbitrary compact Kähler C-pairs, including cases where an Albanese in the stronger sense cannot exist. Its status is not determined by the supplied source.

References

Primary source

Stefan Kebekus and Erwan Rousseau, “The Albanese of a C-pair”, arXiv:2410.00405 (2024).

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