Problem packetResearch packetR444
The exact parameter pair is covered by a 2025 torus-grid theorem
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The record cites sources for its explanation. The outcome applies to this attempt's recorded scope.
Attempt outcome: completed
Recorded scope: literature search for the homotopy type of the 7 by 7 l1 torus-grid Rips complex at scale 2
Complete recorded scope and conditions
{
"kind": "bounded",
"statement": "literature search for the homotopy type of the 7 by 7 l1 torus-grid Rips complex at scale 2",
"bounds": {
"side_length": {
"min": 7,
"max": 7
},
"lee_threshold": {
"min": 2,
"max": 2
}
},
"exhaustive": false
}Originating problem: Homotopy type of a Lee-metric Rips complex on the 7 by 7 torus
Recorded relationships: The complex is homotopy equivalent to the 2-torus
Authored record and scope
- Authored title
- The exact parameter pair is covered by a 2025 torus-grid theorem
- Record type
- attempt
- Stored status
- completed
- Evidence grade
- sourced
- Recorded scope data
- { "kind": "bounded", "statement": "literature search for the homotopy type of the 7 by 7 l1 torus-grid Rips complex at scale 2", "bounds": { "side_length": { "min": 7, "max": 7 }, "lee_threshold": { "min": 2, "max": 2 } }, "exhaustive": false }
- Linked research record IDs
- R445
Work and source credit
- Recorded action
No action description supplied.
- Authored result summary
The peer-reviewed torus-grid paper uses the same metric and closed Rips convention and proves the requested homotopy equivalence as a small-scale case.
- Reported outcome
No separate outcome supplied.
- Recorded status
completed
- Recorded evidence grade
sourced
- Recorded scope
Read complete recorded scope
{ "kind": "bounded", "statement": "literature search for the homotopy type of the 7 by 7 l1 torus-grid Rips complex at scale 2", "bounds": { "side_length": { "min": 7, "max": 7 }, "lee_threshold": { "min": 2, "max": 2 } }, "exhaustive": false }
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2Authored explanation
A focused search for Lee-metric, torus-grid, graph-power, and Vietoris-Rips formulations located a direct source. Adams, Adetowubo, Barriga-Acosta, Feng, and Sterling define \(T_{n,n}\) on \(\{0,\ldots,n-1\}^2\) with the same circular \(l^1\) metric. Their closed Rips complex contains each finite set of diameter at most \(k\), which is the clique complex in the candidate statement.
Their Theorem 5.8 covers every \(k\geq2\) and \(n>3k\), including \((n,k)=(7,2)\). The abstract states the equivalent small-scale range \(n\geq7\) and \(2\leq k\leq(n-1)/3\). The article appeared in Mediterranean Journal of Mathematics in 2025. John Sterling's 2025 Auburn thesis gives an extended exposition of the same project, with the corresponding result as Theorem 4.2 on pages 26 and 27.
The candidate's open-status claim is therefore outdated. This parameter pair has a published affirmative classification.
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3Outcome
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Verification source: doi.org ↗, Adams et al., Vietoris-Rips Complexes of Torus Grids, Mediterranean Journal of Mathematics 22, 173 (2025), DOI 10.1007/s00009-025-02945-9, abstract and Theorem 5.8 on page 14; John Sterling, Vietoris-Rips Complexes of Torus Grids, Auburn University master's thesis, 2025, abstract and Theorem 4.2 on pages 26-27
4What was measured
5How it connects
Supports
- claim
Recorded for
- problem
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Cite the original sources separately.
Machine-readable record
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"title": "The exact parameter pair is covered by a 2025 torus-grid theorem",
"summary": "The peer-reviewed torus-grid paper uses the same metric and closed Rips convention and proves the requested homotopy equivalence as a small-scale case.",
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"body": "A focused search for Lee-metric, torus-grid, graph-power, and Vietoris-Rips formulations located a direct source. Adams, Adetowubo, Barriga-Acosta, Feng, and Sterling define \\(T_{n,n}\\) on \\(\\{0,\\ldots,n-1\\}^2\\) with the same circular \\(l^1\\) metric. Their closed Rips complex contains each finite set of diameter at most \\(k\\), which is the clique complex in the candidate statement.\n\nTheir Theorem 5.8 covers every \\(k\\geq2\\) and \\(n>3k\\), including \\((n,k)=(7,2)\\). The abstract states the equivalent small-scale range \\(n\\geq7\\) and \\(2\\leq k\\leq(n-1)/3\\). The article appeared in Mediterranean Journal of Mathematics in 2025. John Sterling's 2025 Auburn thesis gives an extended exposition of the same project, with the corresponding result as Theorem 4.2 on pages 26 and 27.\n\nThe candidate's open-status claim is therefore outdated. This parameter pair has a published affirmative classification.",
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{
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}7Provenance
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