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Record W4410371241 · doi:10.1215/00127094-2024-0041

On the dynamical Bogomolov conjecture for families of split rational maps

2025· article· en· W4410371241 on OpenAlex

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affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueDuke Mathematical Journal · 2025
Typearticle
Languageen
FieldMathematics
TopicAdvanced Differential Equations and Dynamical Systems
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsMathematicsConjecturePure mathematics

Abstract

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We prove that Zhang’s dynamical Bogomolov conjecture holds uniformly along 1-parameter families of rational split maps and curves. This provides dynamical analogues of recent results of Dimitrov, Gao, and Habegger as well as Kühne. In fact, we prove a stronger Bogomolov-type result valid for families of split maps in the spirit of the relative Bogomolov conjecture. We thus provide first instances of a generalization of Baker-DeMarco’s conjecture to higher dimensions. Our proof contains both arithmetic and analytic ingredients. Our main analytic result may be viewed as a dynamical Ax–Lindemann-type theorem for split rational endomorphisms. More precisely, we show that weakly special curves under the action of a split map (f,g) of (PC1)2 are exactly those that lead to linear relations between the measures of maximal entropy of f and g. This extends a previous result of Levin and Przytycki. We further establish a height inequality for families of split maps and varieties comparing the values of a fiber-wise Call–Silverman canonical height with a height on the base and valid for most points of a non-preperiodic variety. This provides a dynamical generalization of a theorem of Haebegger and generalizes results of Call and Silverman as well as Baker to higher dimensions. In particular, we establish a geometric Bogomolov theorem for split rational maps and varieties of arbitrary dimension.

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Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.003
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.867
Threshold uncertainty score0.403

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.003
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.027
GPT teacher head0.321
Teacher spread0.294 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it