Broustet–Höring's log canonical model conjecture for polarized endomorphisms

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Let XX be a normal projective complex variety admitting a non-invertible polarized endomorphism f:X⟶Xf: X \longrightarrow X. Suppose that XX has a log canonical model μ:Y⟶X\mu: Y \longrightarrow X.

Broustet–Höring's conjecture. The morphism μ\mu is an isomorphism in codimension one.

This is a precise formulation of the conjectural extension of Broustet and Höring's result to varieties that are not necessarily Q\mathbb{Q}-Gorenstein. In the paper's setting, the broader log canonical singularities conjecture is proved using valuative log canonical singularities, while this log canonical model formulation is not separately identified as resolved.

References

Primary source

Shou Yoshikawa, “Singularities of non-Q-Gorenstein varieties admitting a polarized endomorphism”, arXiv:1811.01795 (2021).

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