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The Popa-Vaes paving conjecture over arbitrary maximal abelian subalgebras: strong-operator, approximation and quadratic paving

Quadratic paper, Theorem 1.1: for 0<ε<10<\varepsilon<1 and rε≤5×108ε−2r_\varepsilon\le5\times10^8\varepsilon^{-2}, every self-adjoint xx in any von Neumann algebra MM is (ε,rε)(\varepsilon,r_\varepsilon) so-pavable over every MASA A⊆MA\subseteq M, with no separability or conditional expectation assumed; corollary: quadratic norm paving in Ocneanu ultrapowers of expected countably decomposable MASAs. Approximation paper, Theorem 1.1: every self-adjoint xx is a strong limit of self-adjoint yy with ∥y∥≤3∥x∥\|y\|\le3\|x\|, each norm-pavable to error ε∥y∥\varepsilon\|y\| with at most Cε−6C\varepsilon^{-6} projections. Not shown: norm paving of the original operator (false in general), optimal numerical constants, or a quadratic rate for approximation paving.

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Prior state unknown→proved

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Occurred: Sep 25, 2026

Delta type: SOURCE CLAIM

Assumptions: VibeMathed verification: unreviewed. Publication: announcement. AI contribution: ai-discovered. VibeMathed editorial classifications, scores, notes, relations, and dataset structure are CC BY 4.0. Source statements and linked content retain their own rights.

Canonical aliases: The Popa-Vaes paving conjecture over arbitrary maximal abelian subalgebras: strong-operator, approximation and quadratic paving · Popa-Vaes paving conjecture

Confidence: Not scored

Registry verification: unreviewed · announcement · candidate

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Unreleased internal OpenAI model
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The Popa-Vaes paving conjecture over arbitrary maximal abelian subalgebras: strong-operator, approximation and quadratic paving parent of this event

Popa and Vaes, Paving over arbitrary MASAs in von Neumann algebras (Anal. PDE 8, 2015) evidence for this event

The Popa-Vaes paving conjecture over arbitrary maximal abelian subalgebras: strong-operator, approximation and quadratic paving evidence for this event

This event attributed to Unreleased internal OpenAI model

VibeMathed record: The Popa-Vaes paving conjecture over arbitrary maximal abelian subalgebras: strong-operator, approximation and quadratic paving evidence for this event

Companion: Approximation Paving over Arbitrary Maximal Abelian Subalgebras evidence for this event

Quadratic paper, Theorem 1.1: for 0<ε<10<\varepsilon<1 and rε≤5×108ε−2r_\varepsilon\le5\times10^8\varepsilon^{-2}, every self-adjoint xx in any von Neumann algebra MM is (ε,rε)(\varepsilon,r_\varepsilon) so-pavable over every MASA A⊆MA\subseteq M, with no separability or conditional expectation assumed; corollary: quadratic norm paving in Ocneanu ultrapowers of expected countably decomposable MASAs. Approximation paper, Theorem 1.1: every self-adjoint xx is a strong limit of self-adjoint yy with ∥y∥≤3∥x∥\|y\|\le3\|x\|, each norm-pavable to error ε∥y∥\varepsilon\|y\| with at most Cε−6C\varepsilon^{-6} projections. Not shown: norm paving of the original operator (false in general), optimal numerical constants, or a quadratic rate for approximation paving. parent of this event

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