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Record W2031607020 · doi:10.1093/imanum/drr015

High-order conforming finite elements on pyramids

2011· article· en· W2031607020 on OpenAlexaff
Nilima Nigam, Joel Phillips

Bibliographic record

VenueIMA Journal of Numerical Analysis · 2011
Typearticle
Languageen
FieldEngineering
TopicElasticity and Material Modeling
Canadian institutionsSimon Fraser University
Fundersnot available
KeywordsHexahedronQuadrilateralTetrahedronMathematicsPyramid (geometry)Finite element methodOrder (exchange)Degrees of freedom (physics and chemistry)PolynomialPure mathematicsAlgebra over a fieldGeometryMathematical analysisStructural engineering

Abstract

fetched live from OpenAlex

Pyramids—with one quadrilateral and four triangular faces—appear as `glueing' elements in a hybrid mesh consisting of tetrahedral and hexahedral elements. High-order discrete differential forms on tetrahedral and hexahedral elements are well known, but the analogous elements on a pyramid are not. How does one construct high-order approximation spaces on pyramids that are compatible with neighbouring elements? We address this question in this paper. We present a family of high-order finite element approximation spaces on a pyramid and associated unisolvent degrees of freedom. These spaces consist of rational basis functions. We establish conforming, exactness and polynomial approximation properties of these new finite elements.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation 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: none
Teacher disagreement score0.001
Threshold uncertainty score0.005

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.000

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 head0.018
GPT teacher head0.220
Teacher spread0.201 · 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 source (direct Gemma or distilled Codex), 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

Citations35
Published2011
Admission routes1
Has abstractyes

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