Good-reduction conjecture for polarized morphisms
Good-reduction conjecture for polarized morphisms
Let be any complete non-Archimedean field, and let be a projective -variety. A morphism is polarized if there exists an ample line bundle and an integer such that is linearly equivalent to . The morphism has good reduction if it extends to a regular self-map of a suitable flat projective model of over the valuation ring of . Good-reduction conjecture. If is polarized and , then has good reduction. This asks whether, within the polarized setting, vanishing topological entropy forces good reduction. The surrounding discussion explains that the analogous assertion fails for general regular self-maps in higher dimensions, while the polarized case is proposed as the relevant positive statement.
Sources & referencesView supporting material
Primary source
Charles Favre, Tuyen Trung Truong and Junyi Xie, “Topological entropy of a rational map over a complete metrized field”, arXiv:2208.00668 (2022).
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