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Record W2119811664 · doi:10.22215/etd/2015-10940

Length Two Extensions of Modules for the Witt Algebra

2015· preprint· en· W2119811664 on OpenAlexaff
Kathlyn Dykes

Bibliographic record

Venuenot available
Typepreprint
Languageen
FieldMathematics
TopicAlgebraic structures and combinatorial models
Canadian institutionsCarleton UniversityUniversity of Toronto
Fundersnot available
KeywordsMathematicsHomomorphismAlgebra over a fieldTensor (intrinsic definition)Extension (predicate logic)CohomologyPure mathematicsCommutative propertyWitt algebraCellular algebraAlgebra representationComputer scienceProgramming language

Abstract

fetched live from OpenAlex

In this thesis, we analyse length two extensions of tensor modules for the Witt algebra. In 1992, a classification of these modules was found by Martin and Piard in [14], though no explicit form of the extensions were given. In this thesis, we establish an explicit classification of these modules using a different approach. As we will show, each module extension is classified by a 1-cocycle from the cohomology of the Witt algbera with coefficients in the module of the space of homomorphisms between the two tensor modules of interest. To use this, we first extended our module to a module that has a compatible action of the commutative algebra of Laurent polynomials in one variable. In this setting, we are able to determine the possible structure of a 1-cocycle and from here, we will be able to directly compute all possible 1-cocycles.

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)0.001
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: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.301
Threshold uncertainty score0.678

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.001
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 head0.113
GPT teacher head0.362
Teacher spread0.249 · 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".

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Citations0
Published2015
Admission routes1
Has abstractyes

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