OWR-3389-011 · Complete scoped counterexample

Intrinsic Negative Sobolev Norms at a Fixed First Eigenvalue

Manuscript 27 October 2026 · Online 27 October 2026

math.DGmath.SPmath.APUnrefereed preprint

Abstract

We construct smooth positive unit-area conformal metrics on the two-sphere with first nonzero Laplace eigenvalue exactly 6*pi, while the intrinsic H^-1 norm of the conformal factor diverges uniformly over all round conformal parametrizations. The norm uses the scalar-function pairing with the varying metric's area measure. An explicit family of antipodal polynomial caps is small in L^(3/2) but large in L2. A variance-continuity lemma allows exact eigenvalue tuning, and the Mobius Jacobian formula prevents any conformal reparametrization from removing the growth. The five-page manuscript gives a complete proof and exact rational diagnostics. It distinguishes this counterexample from known positive bounds for the area measure in a fixed round-background Sobolev dual. The relation to Nadirashvili's printed 2009 conjecture, represented by UnsolvedMath OWR-3389-011, is explicitly qualified by the choice of pairing; no unqualified original-source closure is claimed. This is an unrefereed preprint, without a claim of absolute priority or formal verification.

Record

Affiliation
Mercury Software GmbH
Result
Complete scoped counterexample
Categories
math.DG · math.SP · math.AP
Manuscript
27 October 2026
Online release
27 October 2026
Version
1.0
License
Creative Commons Attribution 4.0 International

Files and verification

The PDF is the canonical reading copy. The source archive contains the LaTeX manuscript, bibliography, reproducibility material, and audit documents without build artefacts.

Citation

Alper Ferudun, “Intrinsic Negative Sobolev Norms at a Fixed First Eigenvalue,” EulerSolve Research Papers, OWR-3389-011, 2026. https://doi.org/10.5281/zenodo.23676435.

BibTeX
@misc{ferudun2026intrinsicnorm,
  author = {Ferudun, Alper},
  title = {Intrinsic Negative Sobolev Norms at a Fixed First Eigenvalue},
  year = {2026},
  howpublished = {EulerSolve Research Papers},
  url = {https://eulersolve.org/papers/owr-3389-011/},
  doi = {10.5281/zenodo.23676435},
  note = {OWR-3389-011; unrefereed preprint}
}

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