Enumeration and randomized constructions of hypertrees
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Bibliographic record
Abstract
Over 30 years ago, Kalai proved a beautiful d ‐dimensional analog of Cayley's formula for the number of n ‐vertex trees. He enumerated d ‐dimensional hypertrees weighted by the squared size of their ( d − 1)‐dimensional homology group. This, however, does not answer the more basic problem of unweighted enumeration of d ‐hypertrees, which is our concern here. Our main result, Theorem 1.4, significantly improves the lower bound for the number of d ‐hypertrees. In addition, we study a random 1‐out model of d ‐complexes where every ( d − 1)‐dimensional face selects a random d ‐face containing it, and show that it has a negligible d ‐dimensional homology.
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it