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Record W2082954953 · doi:10.1142/s0219498808003077

NEAR-DIAGONAL REPRESENTATIVES OF CONJUGACY CLASSES OF ORTHOGONAL MATRICES

2008· article· en· W2082954953 on OpenAlexaff
Dragomir Ž. Ðoković, Kaiming Zhao

Bibliographic record

VenueJournal of Algebra and Its Applications · 2008
Typearticle
Languageen
FieldEngineering
Topicgraph theory and CDMA systems
Canadian institutionsWilfrid Laurier UniversityUniversity of Waterloo
Fundersnot available
KeywordsMathematicsAlgebraically closed fieldConjugacy classZigzagCombinatoricsDiagonalConjectureTransposeMatrix (chemical analysis)Orthogonal groupTriangular matrixOrthogonal matrixGroup (periodic table)Field (mathematics)Pure mathematicsInvertible matrixOrthogonal basisEigenvalues and eigenvectorsGeometryPhysics

Abstract

fetched live from OpenAlex

Let F be an algebraically closed field of characteristic not 2. Define the orthogonal group, O n (F), as the subgroup of GL n (F) consisting of matrices X such that X -1 = X', the transpose of X. We prove that any A ∈ O n (F) having no elementary divisors (t ± 1) k , with k even, is conjugate to a direct sum of zigzag matrices. A zigzag matrix is a special kind of a band matrix with only five nonzero diagonals. We also propose a conjecture about the case excluded above.

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)0.000
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: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.537
Threshold uncertainty score0.241

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
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 integrity0.0000.000
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 head0.013
GPT teacher head0.239
Teacher spread0.227 · 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

Citations1
Published2008
Admission routes1
Has abstractyes

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