MétaCan
Menu
Back to cohort
Record W4298306018 · doi:10.48550/arxiv.1409.7975

The smallest singular value of random rectangular matrices with no\n moment assumptions on entries

2014· preprint· W4298306018 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.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenuearXiv (Cornell University) · 2014
Typepreprint
Language
FieldMathematics
TopicRandom Matrices and Applications
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsCombinatoricsMathematicsRandom matrixLambdaSingular valueDistribution (mathematics)Moment (physics)Matrix (chemical analysis)Second moment of areaPhysicsMathematical analysisGeometryEigenvalues and eigenvectorsQuantum mechanics

Abstract

fetched live from OpenAlex

Let $\\delta>1$ and $\\beta>0$ be some real numbers. We prove that there are\npositive $u,v,N_0$ depending only on $\\beta$ and $\\delta$ with the following\nproperty: for any $N,n$ such that $N\\ge \\max(N_0,\\delta n)$, any $N\\times n$\nrandom matrix $A=(a_{ij})$ with i.i.d. entries satisfying\n$\\sup\\limits_{\\lambda\\in {\\mathbb R}}{\\mathbb P}\\bigl\\{|a_{11}-\\lambda|\\le\n1\\bigr\\}\\le 1-\\beta$ and any non-random $N\\times n$ matrix $B$, the smallest\nsingular value $s_n$ of $A+B$ satisfies ${\\mathbb P}\\bigl\\{s_n(A+B)\\le\nu\\sqrt{N}\\bigr\\}\\le \\exp(-vN)$. The result holds without any moment assumptions\non distribution of the entries of $A$.\n

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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.508
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.001
Science and technology studies0.0010.001
Scholarly communication0.0000.000
Open science0.0020.001
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 head0.040
GPT teacher head0.200
Teacher spread0.160 · 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