Source authenticated
Ran-Teng Conjecture 20 on 4-Cycle Stochastic Matrices
Is the exact nonreal spectral region of the four-cycle family of row-stochastic nonnegative matrices determined by the Karpelevich constraint, as Ran and Teng conjectured in 2024?
Exact FrontierDelta
Prior state unknown→proved
Scope and record
Occurred: Feb 24, 2026
Delta type: SOURCE CLAIM
Assumptions: VibeMathed verification: unreviewed. Publication: preprint. AI contribution: ai-co-developed. Imported under CC BY 4.0.
Canonical aliases: Ran-Teng Conjecture 20 on 4-Cycle Stochastic Matrices · Ran-Teng 20
Confidence: Not scored
Registry verification: unreviewed · preprint · resolved
Attribution
VibeMathed
registry · event recorded by
ChatGPT-5.2 Thinking
model · ai model contributor · OpenAI
Lineage and corrections
This event attributed to ChatGPT-5.2 Thinking