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Record W4411687188 · doi:10.61091/um123-04

Facial entire coloring of 4-minor-free graphs

2025· article· en· W4411687188 on OpenAlex

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.

venuePublished in a venue whose home country is Canada.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueUtilitas Mathematica · 2025
Typearticle
Languageen
FieldComputer Science
TopicGraph Labeling and Dimension Problems
Canadian institutionsnot available
Fundersnot available
KeywordsMathematicsCombinatoricsMinor (academic)HumanitiesArt

Abstract

fetched live from OpenAlex

<p>Let <span class="math inline">\(G\)</span> be a plane graph. If two edges are adjacent and consecutive on the boundary walk of a face of <span class="math inline">\(G\)</span>, then they are said to be facially adjacent. We call <span class="math inline">\(G\)</span> facially entire <span class="math inline">\(k\)</span>-colorable if there is a mapping from <span class="math inline">\(V(G)\cup E(G)\cup F(G)\)</span> to a <span class="math inline">\(k\)</span> color set so that any two facially adjacent edges, adjacent vertices, adjacent faces, and incident elements receive different colors. The facial entire chromatic number of <span class="math inline">\(G\)</span> is defined to be the smallest integer <span class="math inline">\(k\)</span> such that <span class="math inline">\(G\)</span> is facially entire <span class="math inline">\(k\)</span>-colorable. In 2016, Fabrici, Jendrol’ and Vrbjarová conjectured that every connected, loopless, bridgeless plane graph is facially entire <span class="math inline">\(7\)</span>-colorable. In this paper, we give a positive answer to this conjecture for <span class="math inline">\(K_4\)</span>-minor-free graphs. More specifically, we shall prove that every <span class="math inline">\(K_{4}\)</span>-minor-free graph is facially entire <span class="math inline">\(7\)</span>-colorable.</p>

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)0.000
metaresearch head score (Gemma)0.000
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: Empirical
Teacher disagreement score0.226
Threshold uncertainty score0.447

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
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 head0.015
GPT teacher head0.248
Teacher spread0.234 · 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