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Carrasco's Conjecture on the O'Shea-Zames-Falb Test

Is the O'Shea-Zames-Falb multiplier test necessary for robust stability of Lur'e systems with slope-restricted nonlinearities, as conjectured by Carrasco? No: there is a stable Lur'e interconnection, certified by a full-block multiplier, that admits no OZF multiplier.

Exact FrontierDelta

Prior state unknowndisproved

Scope and record

Occurred: Jul 26, 2026

Delta type: SOURCE CLAIM

Assumptions: VibeMathed verification: unreviewed. Publication: preprint. AI contribution: ai-co-developed. Imported under CC BY 4.0.

Canonical aliases: Carrasco's Conjecture on the O'Shea-Zames-Falb Test · Carrasco/OZF conjecture

Confidence: Not scored

Registry verification: unreviewed · preprint · resolved

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Attribution

VibeMathed
registry · event recorded by

Andrey Kharitenko
human · human collaborator

ChatGPT 5.5
model · ai model contributor · OpenAI

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This event attributed to Andrey Kharitenko

This event attributed to ChatGPT 5.5

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Carrasco's Conjecture on the O'Shea-Zames-Falb Test — Mathematical Frontier Network