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Record W1767070251 · doi:10.13001/1081-3810.1081

Proof of Atiyah's conjecture for two special types of configurations

2002· article· en· W1767070251 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

VenueElectronic Journal of Linear Algebra · 2002
Typearticle
Languageen
FieldMathematics
TopicMathematics and Applications
Canadian institutionsUniversity of Waterloo
Fundersnot available
KeywordsMathematicsConjecturePure mathematicsType (biology)Calculus (dental)Algebra over a field

Abstract

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Abstract. To an ordered N-tuple (x1,..., xN) of distinct points in R 3, Atiyah [1, 2] has associated an ordered N-tuple of homogeneous polynomials (p1,..., pN) in C[x,y] of degree N − 1, each pi determined only up to a scalar factor. He has conjectured that these polynomials are linearly independent. We show that his conjecture is true for two special configurations of N points. Moreover we show that, for one of these configurations, the stronger conjecture [3, Conjecture 2] is valid. Key words. Atiyah’s conjecture, the Hopf map, configuration of N points in R 3, projective line PC 1. AMS subject classifications. Primary 51M04, 51M16, Secondary 70G25 1. Two conjectures. Let (x1,..., xN) be an ordered N-tuple of distinct points in R 3. Each ordered pair (xi, xj) with i ̸ = j determines a point xj − xi |xj − xi| on the unit sphere S2 ⊂ R3. Identify S2 with the complex projective line PC 1 by using a stereographic projection. Hence one obtains a point (uij, vij) ∈ PC 1 and a nonzero linear form lij = uijx + vijy ∈ C[x, y]. Define homogeneous polynomials pi ∈ C[x, y] of degree N − 1 by pi = ∏ lij(x, y), i = 1,..., N. (1.1) j̸=i Conjecture 1.1. (Atiyah [2]) The polynomials p1,..., pN are linearly independent. Atiyah [1, 2] has observed that his conjecture is true if the points x1,..., xN are collinear. He has also verified the conjecture for N = 3. The case N = 4 has been verified by Eastwood and Norbury [4]. For additional information on the conjecture (further conjectures, generalizations, and numerical evidence) see [2, 3]. In order to state the second conjecture, one has to be more explicit. Identify R 3 with R × C and denote the origin by O. Following Eastwood and Norbury [4], we make use of the Hopf map h: C 2 \\ {O} → (R × C) \\ {O} defined by: h(z, w) = ((|z | 2 − |w | 2)/2, z ¯w). This map is surjective and its fibers are the circles {(zu, wu) : u ∈ S 1}, where S 1 is the unit circle in C. If h(z, w) = (a, v), we say that (z, w) is a lift of (a, v). For

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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)0.000
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: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.440
Threshold uncertainty score0.617

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 communication0.0000.000
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 head0.314
Teacher spread0.280 · 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