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Record W2794595921 · doi:10.1090/conm/704/14160

Calculus on a non-Archimedean field extension of the real numbers: inverse function theorem, intermediate value theorem and mean value theorem

2018· other· en· W2794595921 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

VenueContemporary mathematics - American Mathematical Society · 2018
Typeother
Languageen
FieldMathematics
TopicMathematical and Theoretical Analysis
Canadian institutionsUniversity of Manitoba
Fundersnot available
KeywordsMathematicsMean value theorem (divided differences)Extension (predicate logic)Fundamental theorem of calculusBrouwer fixed-point theoremInverse function theoremPicard–Lindelöf theoremIsomorphism extension theoremField (mathematics)InverseValue (mathematics)Pure mathematicsCarlson's theoremDanskin's theoremDiscrete mathematicsFixed-point theorem

Abstract

fetched live from OpenAlex

In this paper, we introduce the concept of weakly locally uniformly differentiable functions (WLUD) on <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="script upper N"> <mml:semantics> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:mi class="MJX-tex-caligraphic" mathvariant="script">N</mml:mi> </mml:mrow> <mml:annotation encoding="application/x-tex">\mathcal {N}</mml:annotation> </mml:semantics> </mml:math> </inline-formula> , a non-Archimedean field extension of the real numbers that is real closed and Cauchy complete in the topology induced by the order. We show that WLUD functions are <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper C Superscript 1"> <mml:semantics> <mml:msup> <mml:mi>C</mml:mi> <mml:mn>1</mml:mn> </mml:msup> <mml:annotation encoding="application/x-tex">C^1</mml:annotation> </mml:semantics> </mml:math> </inline-formula> and they form an <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="script upper N"> <mml:semantics> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:mi class="MJX-tex-caligraphic" mathvariant="script">N</mml:mi> </mml:mrow> <mml:annotation encoding="application/x-tex">\mathcal {N}</mml:annotation> </mml:semantics> </mml:math> </inline-formula> -algebra that is closed under composition and contains all polynomial functions. We formulate and prove a version of the inverse function theorem as well as a local intermediate value theorem for these functions. Then we generalize the WLUD concept to higher orders of differentiability and study WLUD <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="Superscript n"> <mml:semantics> <mml:msup> <mml:mi/> <mml:mi>n</mml:mi> </mml:msup> <mml:annotation encoding="application/x-tex">^n</mml:annotation> </mml:semantics> </mml:math> </inline-formula> functions at a point or on a subset of <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="script upper N"> <mml:semantics> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:mi class="MJX-tex-caligraphic" mathvariant="script">N</mml:mi> </mml:mrow> <mml:annotation encoding="application/x-tex">\mathcal {N}</mml:annotation> </mml:semantics> </mml:math> </inline-formula> . In particular, we study the properties of WLUD <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="squared"> <mml:semantics> <mml:msup> <mml:mi/> <mml:mn>2</mml:mn> </mml:msup> <mml:annotation encoding="application/x-tex">^2</mml:annotation> </mml:semantics> </mml:math> </inline-formula> functions and we formulate and prove a local mean value theorem for such functions.

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)0.003
metaresearch head score (Gemma)0.003
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Science and technology studies, Insufficient payload (model declined to judge)
Consensus categoriesMeta-epidemiology (narrow)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.697
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0030.003
Meta-epidemiology (narrow)0.0020.001
Meta-epidemiology (broad)0.0030.002
Bibliometrics0.0000.001
Science and technology studies0.0000.006
Scholarly communication0.0000.000
Open science0.0020.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0030.000

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 head0.022
GPT teacher head0.279
Teacher spread0.257 · 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