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Record W4211099063 · doi:10.2140/ant.2021.15.2403

Remarks on generating series for special cycles on orthogonal Shimura varieties

2021· article· en· W4211099063 on OpenAlex

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

Bibliographic record

VenueAlgebra & Number Theory · 2021
Typearticle
Languageen
FieldMathematics
TopicAdvanced Algebra and Geometry
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsMathematicsShimura varietyModular formCodimensionSeries (stratigraphy)Pure mathematicsSignature (topology)CombinatoricsCohomologyAlgebraic cycleTRACE (psycholinguistics)Group (periodic table)ConjectureAlgebraic numberAlgebra over a fieldMathematical analysisGeometry

Abstract

fetched live from OpenAlex

In this note, we consider special algebraic cycles on the Shimura variety S associated to a quadratic space V over a totally real field F , |F : Q| = d, of signatureFor each n, 1 ≤ n ≤ m, there are special cycles Z(T ) in S, of codimension nd+, indexed by totally positive semi-definite matrices with coefficients in the ring of integers OF .The generating series for the classes of these cycles in the cohomology group H 2nd + (S) are Hilbert-Siegel modular forms of parallel weight m 2 + 1.One can form analogous generating series for the classes of the special cycles in the Chow group CH nd + (S).For d+ = 1 and n = 1, the modularity of these series was proved by Yuan-Zhang-Zhang.In this note we prove the following: Assume the Bloch-Beilinson conjecture on the injectivity of Abel-Jacobi maps.Then the Chow group valued generating series for special cycles of codimension nd+ on S is modular for all n with 1 ≤ n ≤ m.

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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)0.002
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.075
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.002
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)0.0070.000

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 head0.024
GPT teacher head0.306
Teacher spread0.282 · 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