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Chain-k Mappings: A Combinatorial and Spectral Approach to Analyzing Complete Mappings

2025· article· W4415620196 on OpenAlex
Chengze Li, Yifei Chen

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

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

Bibliographic record

VenueTheoretical and Natural Science · 2025
Typearticle
Language
FieldMathematics
TopicFinite Group Theory Research
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsBijection, injection and surjectionPermutation (music)AutomorphismCharacterization (materials science)Connection (principal bundle)Permutation groupGroup (periodic table)Class (philosophy)

Abstract

fetched live from OpenAlex

This paper investigates bijections on a group G that arise from products of the form f(x)g(x), a problem that is centrally connected to the concept of a complete mapping. We introduce the notion of a “chain-k mapping” to analyze the structure of certain full-cycle permutations and explore the relationship between complete mappings and the spectral properties of their associated permutation matrices. Key results include a proof that the cyclic group Z/nZ admits a complete mapping if and only if n is odd, and a characterization of the cycle structures of permutations σ for which the maps id+σ and id−σ are automorphisms of a specific vector subspace. This work establishes a connection between combinatorial group theory and the eigenvalue theory of permutation matrices, viewed through the novel lens of “(-1)-elliptic elements”. We will begin with the motivation that led to this study, and look at problems including elliptic elements and complete mappings over finite fields.

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.

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)0.006
metaresearch head score (Gemma)0.003
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Science and technology studies
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 score0.068
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0060.003
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.004
Science and technology studies0.0010.012
Scholarly communication0.0010.000
Open science0.0010.002
Research integrity0.0000.001
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 head0.019
GPT teacher head0.298
Teacher spread0.279 · 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