Problem packetResearch packetR386
Total domination cannot certify 6-connectivity at n=6
Link to a section
The record reports a computation within its stated scope. The outcome applies to this attempt's recorded scope.
Attempt outcome: failed
Recorded scope: the total-domination method applied to 6-connectivity of VR(Q_6;4)
Complete recorded scope and conditions
{
"kind": "bounded",
"statement": "the total-domination method applied to 6-connectivity of VR(Q_6;4)",
"bounds": {
"cube_dimension": {
"min": 6,
"max": 6
},
"scale": {
"min": 4,
"max": 4
},
"target_connectivity": {
"min": 6,
"max": 6
}
},
"exhaustive": true
}Originating problem: Integral torsion in scale-four hypercube Rips complexes
Recorded relationships: Torsion-free through n=5 and no 2-primary torsion at n=6
Authored record and scope
- Authored title
- Total domination cannot certify 6-connectivity at n=6
- Record type
- attempt
- Stored status
- failed
- Evidence grade
- computational
- Recorded scope data
- { "kind": "bounded", "statement": "the total-domination method applied to 6-connectivity of VR(Q_6;4)", "bounds": { "cube_dimension": { "min": 6, "max": 6 }, "scale": { "min": 4, "max": 4 }, "target_connectivity": { "min": 6, "max": 6 } }, "exhaustive": true }
- Linked research record IDs
- R388
Work and source credit
- Recorded action
No action description supplied.
- Authored result summary
The attractive total-domination route stops at 4-connectivity because the exact invariant is 12. The cited theorem would require gamma_t greater than 14 to certify 6-connectivity.
- Reported outcome
No separate outcome supplied.
- Recorded status
failed
- Recorded evidence grade
computational
- Recorded scope
Read complete recorded scope
{ "kind": "bounded", "statement": "the total-domination method applied to 6-connectivity of VR(Q_6;4)", "bounds": { "cube_dimension": { "min": 6, "max": 6 }, "scale": { "min": 4, "max": 4 }, "target_connectivity": { "min": 6, "max": 6 } }, "exhaustive": true }
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The outcome reports what was recorded. Its scope and evidence grade remain separate. Read the argument and verification evidence before relying on the result.
2Authored explanation
The action was to compute \(\gamma_t\) exactly and feed it into the total-domination connectivity theorem. The search examined every candidate size allowed by the elementary lower bound until it found the optimum 12.
To obtain 6-connectivity from Theorem 2.3, set \(k=7\). Its strict hypothesis becomes \(\gamma_t(G)>14\). The exact value 12 violates that hypothesis. The same theorem certifies 4-connectivity and cannot certify 5-connectivity, whose hypothesis would be \(\gamma_t(G)>12\).
This failure boundary is exact. Improving the total-domination search or finding a different minimum witness cannot extend this theorem's result for the same graph. Another topological argument is required.
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Replay material: source only
3Outcome
A verification source is cited. This record has no executable replay attached.
Verification source: arxiv.org ↗, Theorem 2.3 and exact total-domination artifact in this packet
4What was measured
Execution
5How it connects
Evidenced by
- artifact
Uses
- claim
Attempts
- claim
Recorded for
- problem
Cite this record
Cite the original sources separately.
Machine-readable record
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"slug": "hr4-attempt-total-domination-six-connectivity",
"type": "attempt",
"title": "Total domination cannot certify 6-connectivity at n=6",
"summary": "The attractive total-domination route stops at 4-connectivity because the exact invariant is 12. The cited theorem would require gamma_t greater than 14 to certify 6-connectivity.",
"relevance": "For Integral torsion in scale-four hypercube Rips complexes, record hr4-attempt-total-domination-six-connectivity (“Total domination cannot certify 6-connectivity at n=6”) documents a concrete method, search boundary, or failed route. The record states: The attractive total-domination route stops at 4-connectivity because the exact invariant is 12.",
"relevance_source": "recorded",
"body": "The action was to compute \\(\\gamma_t\\) exactly and feed it into the total-domination connectivity theorem. The search examined every candidate size allowed by the elementary lower bound until it found the optimum 12.\n\nTo obtain 6-connectivity from Theorem 2.3, set \\(k=7\\). Its strict hypothesis becomes \\(\\gamma_t(G)>14\\). The exact value 12 violates that hypothesis. The same theorem certifies 4-connectivity and cannot certify 5-connectivity, whose hypothesis would be \\(\\gamma_t(G)>12\\).\n\nThis failure boundary is exact. Improving the total-domination search or finding a different minimum witness cannot extend this theorem's result for the same graph. Another topological argument is required.",
"status": "failed",
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"scale": {
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"target_connectivity": {
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"exhaustive": true
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"reproduction": {
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"kind": "attempt",
"citation": {
"url": "https://arxiv.org/abs/2605.00705",
"locator": "Theorem 2.3 and exact total-domination artifact in this packet"
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},
"models": [],
"relations": [
{
"slug": "R382",
"title": "Exact total-domination search for the n=6 forbidden graph",
"object_type": "artifact",
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{
"slug": "R394",
"title": "The n=6 forbidden graph has total domination number 12",
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{
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{
"slug": "hypercube-rips-scale-four-torsion-free",
"title": "hypercube rips scale four torsion free",
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]
}7Provenance
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A route someone took, recorded so the next person can reuse it or avoid it.