Quadratic Strong-Operator Paving over Arbitrary Maximal Abelian Subalgebras

OpenAI

For every 0<ε<1, every self-adjoint x in any von Neumann algebra M admits strong-operator paving over any maximal abelian subalgebra A with at most 5×10⁸ε⁻² projections. The count is fixed before the inclusion, operator and strong neighborhood, without separability or conditional-expectation assumptions.

Sources for this record

What was already known

Popa and Vaes conjectured strong-operator paving for arbitrary masas with quadratic dependence. Earlier results covered selected expected, type-I, Cartan and singular cases.

AI involvement AI-led

OpenAI authors the manuscript and credits its internal model with the mathematical release. The record does not identify a person who originated this measured-coloring and operator-algebra argument.

OpenAI institutional authorship and the release's internal-model production statement establish leading AI work for this manuscript without proving negligible human input.

Importance Major

This resolves the arbitrary-masa strong-operator paving conjecture at the proposed quadratic order.

Limitations

The theorem paves compressions of the original operator. A separate approximation-paving result applies to nearby operators with an ε⁻⁶ bound.

Technical verification Reported

The cited manuscript presents a proof but no documented complete human review, matching machine formalization, or exact certificate. Finite-dimensional input theorems from earlier authors do not check the new arbitrary-masa argument.

Human understanding Few

No named person is documented explaining the new measured-coloring and normalizer-to-strong-paving mechanism. Few is the evidence default, not a positive finding that experts cannot understand it.

Correction and publication history

2026-10-18 · publication

If correct, this resolves the arbitrary-masa strong-operator paving conjecture at the proposed quadratic order.

Read this published revision