OpenAI · 174-01 · 2026-09-23 · Combinatorics
The strong thin tree conjecture
preprints/The-strong-thin-tree-conjecture-September-23-2026
Family 174. Deterministic construction of strong thin spanning trees.
The authors are OpenAI. This companion does not verify the proof and does not adopt it as a theorem of Ngo Cheung’s series. It is not a premise. O.1 stays NOT_CLOSED. Anti-de Sitter results are not a de Sitter state, not Em02-E’s relational lapse, not XVI-P’s QdS scheme, and not XVI-Q’s sigma-image record. No quantum coefficient is admitted. No compilation is asserted.
Read against the standing problems
Standing problems. No standing problem is named in this text. It was still read against the nine problems and does not close any of them. The authors are OpenAI. The companion does not verify the proof. This is not a premise of a manuscript by Ngo Cheung. O.1 stays NOT_CLOSED. No quantum coefficient is admitted. No compilation is asserted. XVI-P · XVI-N
Resolves the strong thin-tree conjecture constructively. Every finite loopless -edge-connected multigraph on at least two vertices has a spanning tree containing at most a universal fraction of the edges of every cut. Such a tree can be found deterministically in polynomial time, even with binary-encoded parallel-edge multiplicities.
We prove that every finite loopless k-edge-connected multigraph on at least two vertices, with k ≥ 1, has a spanning tree meeting each cut in at most times the size of the cut, where C is a universal constant. This resolves the strong thin tree conjecture.
Preprint source and Lean scope
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This preprint is named in the Lean scope note for 174: Deterministic construction of strong thin spanning trees. The authors are OpenAI. This companion does not verify the formalization. It is not a premise. The OAI library is not imported. No compilation is asserted. O.1 stays NOT_CLOSED.