The weak Albanese conjecture for compact Kähler C-pairs

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 ZZ^{\circ} equipped with a morphism

walb(X,D):XZ\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 ZZ^{\circ} and the morphism walb(X,D)\operatorname{walb}(X,D)^{\circ} are unique up to unique isomorphism, and the group AutO(X)\operatorname{Aut}_{\mathcal O}(X) acts on ZZ^{\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.

Sources & referencesView supporting material

Primary source

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

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