Source authenticated
Stanley's Rankwise Lower-Bound Conjecture for Differential Posets
Must every $r$-differential poset have at least as many elements in each rank as $Y^r$, the $r$-th Cartesian power of Young's lattice? For $r = 3$ the new construction has fourth-rank size $50$ against $51$ for $Y^3$.
Exact FrontierDelta
Prior state unknown→disproved
Scope and record
Occurred: Jul 28, 2026
Delta type: SOURCE CLAIM
Assumptions: VibeMathed verification: unreviewed. Publication: preprint. AI contribution: ai-discovered. Imported under CC BY 4.0.
Canonical aliases: Stanley's Rankwise Lower-Bound Conjecture for Differential Posets · Differential poset ranks
Confidence: Not scored
Registry verification: unreviewed · preprint · resolved
Lineage and corrections
This event attributed to TARS agent system