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Record W4300508286 · doi:10.48550/arxiv.1806.09175

Some combinatorial identities appearing in the calculation of the\n cohomology of Siegel modular varieties

2018· preprint· W4300508286 on OpenAlexaff
Richard Ehrenborg, Sophie Morel, Margaret Readdy

Bibliographic record

VenuearXiv (Cornell University) · 2018
Typepreprint
Language
FieldMathematics
TopicAdvanced Algebra and Geometry
Canadian institutionsToronto Metropolitan University
Fundersnot available
KeywordsCoxeter groupMathematicsCohomologyShimura varietyPure mathematicsAlgebra over a fieldRank (graph theory)Symmetric groupRepresentation theoryIntersection (aeronautics)Modular formCombinatoricsGeography

Abstract

fetched live from OpenAlex

In the computation of the intersection cohomology of Shimura varieties, or of\nthe $L^2$ cohomology of equal rank locally symmetric spaces, combinatorial\nidentities involving averaged discrete series characters of real reductive\ngroups play a large technical role. These identities can become very\ncomplicated and are not always well-understood (see for example the appendix of\n[8]). We propose a geometric approach to these identities in the case of Siegel\nmodular varieties using the combinatorial properties of the Coxeter complex of\nthe symmetric group. Apart from some introductory remarks about the origin of\nthe identities, our paper is entirely combinatorial and does not require any\nknowledge of Shimura varieties or of representation theory.\n

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.002
metaresearch head score (Gemma)0.004
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.006
Threshold uncertainty score0.019

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.004
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.001
Science and technology studies0.0020.003
Scholarly communication0.0030.006
Open science0.0020.003
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0060.001

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 head0.058
GPT teacher head0.212
Teacher spread0.154 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designTheoretical or conceptual
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2018
Admission routes1
Has abstractyes

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