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Proving arithmetic functions over gaussian integer rings with applications to Saskatchewan prairie wheat yields

2025· article· W7164830435 on OpenAlexaboutno aff
Mandla Khumalo, Thandiwe Ndlovu, Kagiso Molefe

Bibliographic record

VenueInternational Journal of Statistics and Applied Mathematics · 2025
Typearticle
Language
FieldAgricultural and Biological Sciences
TopicClimate change impacts on agriculture
Canadian institutionsnot available
Fundersnot available
KeywordsInteger (computer science)GaussianMultiplicative functionGaussian integerSampling (signal processing)Set (abstract data type)RoundingGaussian process

Abstract

fetched live from OpenAlex

Arithmetic functions defined on the Gaussian integers Z[i] encode structural information that standard integer arithmetic misses entirely. This research proved a set of extension theorems for multiplicative and additive arithmetic functions over Gaussian integer rings, then applied the resulting algebraic framework to model wheat yield variability across Saskatchewan’s prairie crop districts. Daily weather data, soil moisture readings, and harvest records from five crop districts covering the 2018-2023 growing seasons were mapped onto Gaussian integer norms, with the real part encoding thermal accumulation and the imaginary part encoding precipitation deficit. A Gibbs sampling scheme estimated posterior distributions for the norm-yield regression coefficients, and a variogram analysis quantified spatial correlation among district-level residuals. The Gaussian-integer model explained 86.7% of yield variance, compared with 78.4% for a conventional real-valued regression. Prediction errors were distributed symmetrically around zero in all five districts, with median absolute errors between 0.09 and 0.17 tonnes per hectare. Zero-sum game theory was used to allocate limited crop insurance resources across districts under worst-case yield scenarios. The results show that embedding agronomic data into Gaussian integer rings captures interaction effects between heat and moisture that real-valued models treat as separable.

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: none
Teacher disagreement score0.692
Threshold uncertainty score0.668

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 communication0.0010.000
Open science0.0010.000
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 head0.017
GPT teacher head0.268
Teacher spread0.251 · 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

Citations0
Published2025
Admission routes1
Has abstractyes

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