Further Results on Radio Number of Wedge sum of Graphs
Bibliographic record
Abstract
Let G be a simple connected graph with vertex set V and diameter d . An injective function c : V → { 1 , 2 , 3 , … } is called a radio labeling of G if | c ( x ) c ( y ) | + d ( x , y ) ≥ d + 1 for all distinct x , y ∈ V , where d ( x , y ) is the distance between vertices x and y . The largest number in the range of c is called the span of the labeling c . The radio number of G is the minimum span taken over all radio labelings of G . For a fixed vertex z of G , the sequence ( l 1 , l 2 , … , l r ) is called the level tuple of G , where l i is the number of vertices whose distance from z is i . Let J k ( l 1 , l 2 , … , l r ) be the wedge sum (i.e. one vertex union) of k ≥ 2 graphs having same level tuple ( l 1 , l 2 , … , l r ) . Let J ( l 1 l ′ 1 , l 2 l ′ 2 , … , l r l ′ r ) be the wedge sum of two graphs of same order, having level tuples ( l 1 , l 2 , … , l r ) and ( l ′ 1 , l ′ 2 , … , l ′ r ) . In this paper, we compute the radio number for some sub-families of J k ( l 1 , l 2 , … , l r ) and J ( l 1 l ′ 1 , l 2 l ′ 2 , … , l r l ′ r ) .
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 imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 0.001 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".