1.28249... Lower Bound and Partial Upper Bounds for Cost-Preserving Single-Source Unsplittable Flows
Record lower bound only. The sub-2 ceiling is the codimension-two case and does not bound the record ladder (k=17 has complement mass 11). 4/3 and 2 are conjectures; the proved gap is [1.28249, 2].
Exact FrontierDelta
Scope and record
Occurred: Jul 31, 2026
Delta type: SOURCE CLAIM
Assumptions: VibeMathed verification: site-confirmed. Publication: preprint. AI contribution: ai-co-developed. Imported under CC BY 4.0.
Canonical aliases: 1.28249... Lower Bound and Partial Upper Bounds for Cost-Preserving Single-Source Unsplittable Flows · Common-Point Interval Systems for SSUF
Confidence: Not scored
Registry verification: site confirmed · preprint · partial
Attribution
VibeMathed
registry · event recorded by
Sergey Nikolenko
human · human collaborator
GPT-5.6 Sol
model · ai model contributor · maker attribution ambiguous: OpenAI, Anthropic
Claude Fable 5
model · ai model contributor · maker attribution ambiguous: OpenAI, Anthropic
Claude Opus 5
model · ai model contributor · maker attribution ambiguous: OpenAI, Anthropic
Lineage and corrections
This event attributed to Sergey Nikolenko
This event attributed to Claude Opus 5
This event attributed to Claude Fable 5
This event attributed to GPT-5.6 Sol