Source authenticated

Martinsson-Steiner Conjecture on Fractional Chromatic Number

girth >= 5 case; the triangle-free case remains open

Exact FrontierDelta

Prior state unknown→proved

Scope and record

Occurred: Jul 28, 2026

Delta type: SOURCE CLAIM

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

Canonical aliases: Martinsson-Steiner Conjecture on Fractional Chromatic Number · Fractional chromatic bound

Confidence: Not scored

Registry verification: unreviewed · preprint · partial

Attribution

VibeMathed
registry · event recorded by

Peter Allen
human · human collaborator

Abhishek Dhawan
human · human collaborator

Jonathan A. Noel
human · human collaborator

ChatGPT 5.5 Pro
model · ai model contributor · OpenAI

Lineage and corrections

This event attributed to Jonathan A. Noel

This event attributed to Abhishek Dhawan

This event attributed to Peter Allen

This event attributed to ChatGPT 5.5 Pro

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