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Record W2335093124 · doi:10.4171/rmi/882

A two weight theorem for $\alpha$-fractional singular integrals with an energy side condition

2016· article· en· W2335093124 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

VenueRevista Matemática Iberoamericana · 2016
Typearticle
Languageen
FieldMathematics
TopicAdvanced Harmonic Analysis Research
Canadian institutionsMcMaster University
Fundersnot available
KeywordsAlpha (finance)MathematicsMathematical analysisFundamental theorem of calculusEnergy (signal processing)Mathematical physicsPhysicsPicard–Lindelöf theoremFixed-point theoremStatistics

Abstract

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Let \sigma and \omega be locally finite positive Borel measures on \mathbb{R}^{n} with no common point masses, and let T^{\alpha} be a standard \alpha -fractional Calderón–Zygmund operator on \mathbb{R}^{n} with 0 \leq \alpha < n . Furthermore, assume as side conditions the \mathcal{A}_{2}^{\alpha} conditions and certain \alpha -energy conditions . Then we show that T^{\alpha} is bounded from L^{2}(\sigma ) to L^{2}( \omega ) if the cube testing conditions hold for T^{\alpha} and its dual, and if the weak boundedness property holds for T^{\alpha} . Conversely, if T^{\alpha} is bounded from L^{2}( \sigma ) to L^{2}( \omega ) , then the testing conditions hold, and the weak boundedness condition holds. If the vector of \alpha -fractional Riesz transforms \mathbf{R}_{\sigma }^{\alpha} (or more generally a strongly elliptic vector of transforms) is bounded from L^{2}( \sigma) to L^{2}( \omega ) , then the \mathcal{A}_{2}^{\alpha} conditions hold. We do not know if our energy conditions are necessary when n \geq 2 . The innovations in this higher dimensional setting are the control of functional energy by energy modulo \mathcal{A}_{2}^{\alpha} , the necessity of the \mathcal{A}_{2}^{\alpha} conditions for elliptic vectors, the extension of certain one-dimensional arguments to higher dimensions in light of the differing Poisson integrals used in \mathcal A_2 and energy conditions, and the treatment of certain complications arising from the Lacey–Wick monotonicity lemma. The main obstacle in higher dimensions is thus identified as the pair of energy conditions.

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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)0.001
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: Methods · Consensus signal: none
Teacher disagreement score0.887
Threshold uncertainty score0.904

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
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 science0.0000.000
Research integrity0.0000.000
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 head0.034
GPT teacher head0.355
Teacher spread0.322 · 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