Source authenticated
Kourovka Problem 21.24 - Cograph Power Graphs Are Chordal
If the power graph of a finite group contains no induced path on four vertices, must it also contain no induced cycle of length at least four - that is, is every cograph power graph chordal?
Exact FrontierDelta
Prior state unknown→proved
Scope and record
Occurred: Jul 20, 2026
Delta type: SOURCE CLAIM
Assumptions: VibeMathed verification: lean-verified. Publication: preprint. AI contribution: ai-discovered. Imported under CC BY 4.0.
Canonical aliases: Kourovka Problem 21.24 - Cograph Power Graphs Are Chordal · Kourovka 21.24
Confidence: Not scored
Registry verification: lean verified · preprint · resolved
Lineage and corrections
This event attributed to Aristotle