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Record W3206701587

The Level of Nonmultiplicativity of Graphs

2001· article· en· W3206701587 on OpenAlexaff
Claude Tardif, Xuding Zhu

Bibliographic record

VenueSSRN Electronic Journal · 2001
Typearticle
Languageen
FieldMathematics
TopicGraph theory and applications
Canadian institutionsUniversity of Regina
Fundersnot available
KeywordsMathematicsCombinatoricsMultiplicative functionGraph productCographDiscrete mathematicsBlock graphGraphConjecturePathwidthSplit graphLine graph
DOInot available

Abstract

fetched live from OpenAlex

We introduce a parameter called the level of nonmultiplicativity of a graph, which is related to Hedetniemi's conjecture. We show that this parameter is equal to the number of factors in a factorization of the graph into a product of multiplicative graphs. Apart from the known multiplicative graphs, no graph is known to have a nite level of nonmultiplicativity. We show that the countably innite complete graph K @0 has an innite level of nonmultiplicativity and that there exist Kneser graphs with arbitrarily high levels of nonmultiplicativity. 1 Introduction Given graphs G and H, the categorical product GH of G and H has vertex set V (GH) = f(g; h) : g 2 V (G) and h 2 V (H)g and edge set E(GH) = Supported in part by the National Science Council of R. O. C. under grant NSC882115 -M-110-001. 1 f(g; h)(g 0 ; h 0 ) : gg 0 2 E(G) and hh 0 2 E(H)g. This product is also called the tensor product. If c is an n-coloring of G, then it is straightforward to verify that ...

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 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)0.002
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 score0.027
Threshold uncertainty score0.253

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.000
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 integrity0.0000.001
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 head0.064
GPT teacher head0.323
Teacher spread0.259 · 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 teacher head, 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
Published2001
Admission routes1
Has abstractyes

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