Elementary subgroups of isotropic reductive groups
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Bibliographic record
Abstract
Let $G$ be a not necessarily split reductive group scheme over a commutative ring $R$ with $1$. Given a parabolic subgroup $P$ of $G$, the elementary group $\mathrm {E}_P(R)$ is defined to be the subgroup of $G(R)$ generated by $\mathrm {U}_P(R)$ and $\mathrm {U}_{P^-}(R)$, where $\mathrm {U}_P$ and $\mathrm {U}_{P^-}$ are the unipotent radicals of $P$ and its opposite $P^-$, respectively. It is proved that if $G$ contains a Zariski locally split torus of rank 2, then the group $\mathrm {E}_P(R) =\mathrm {E}(R)$ does not depend on $P$, and, in particular, is normal in $G(R)$.
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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 | 0.001 | 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 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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