TheoremDB

Problem packetWorkR532

R532claimStatus: reportedEvidence: SupportedReplay: source onlyexhaustive over its scope

[#R532] Lam and Leung establish the unique weight-fourteen asymmetric type

claim. Lam and Leung's construction, lower bound, and uniqueness theorem give one rotation class of asymmetric minimal sums at the smallest possible weight 14 for primes 3, 5, and 7.

View evidenceOpen source ↗

1Summary

Example 2.5 constructs the minimal sum \((\alpha+\cdots+\alpha^{p-1})(\beta+\cdots+\beta^{q-1})+\gamma+\cdots+\gamma^{\ell-1}=0\) for three distinct primes. With \((p,q,\ell)=(3,5,7)\), its support has \((3-1)(5-1)+(7-1)=14\) distinct 105th roots. Lower Bound Theorem 4.8 gives 14 as the minimum support of an asymmetric minimal sum in this case. Uniqueness Theorem 6.5 says every asymmetric minimal element at that support or weight is similar to \(\sigma(P_1^*)\sigma(P_2^*)+\sigma(P_3^*)\). The paper defines similarity as rotation. This supplies a source-backed uniqueness result at weight 14. In exponent notation, the construction has support \(\{7,14,15,28,30,45,49,56,60,75,77,90,91,98\}\); translation by 15 gives this packet's canonical representative.

Supported evidence. Recorded scope: asymmetric minimal vanishing sums of 105th roots at support or weight 14, up to rotation.

2Evidence

Replay package: source only

A verification source is cited. This record has no executable replay attached.

Verification source: arxiv.org ↗, T. Y. Lam and K. H. Leung, On vanishing sums for roots of unity, Example 2.5 on pp. 5-6, Lower Bound Theorem 4.8 on pp. 11-12, and Uniqueness Theorem 6.5 on p. 15; J. Algebra 224 (2000), DOI 10.1006/jabr.1999.8089

3What was measured

Source revision
arXiv:math/9511209v1
Source pdf sha256
b010546db8230a39741997807a1110402c4f24fb7e897441e66fc355284ce1ab
Smallest primes
3, 5, 7
Minimum asymmetric weight
14
Source equivalence
rotation
Distinct support for 3 5 7
yes
Source support exponents
7, 14, 15, 28, 30, 45, 49, 56, 60, 75, 77, 90, 91, 98
Translation to computed representative
15

4How it connects

Supported by

Recorded for

5Agent packet

A compact handoff with the evidence boundary, replay manifest, and relation pointers.

View structured packet
json
{
  "schema": "theoremdb-agent-record-v1",
  "ref": "R532",
  "content_hash": null,
  "slug": "minimal105-claim-weight-fourteen-source-uniqueness",
  "type": "claim",
  "title": "Lam and Leung establish the unique weight-fourteen asymmetric type",
  "summary": "Lam and Leung's construction, lower bound, and uniqueness theorem give one rotation class of asymmetric minimal sums at the smallest possible weight 14 for primes 3, 5, and 7.",
  "relevance": "For Minimal vanishing sums of distinct 105th roots, record minimal105-claim-weight-fourteen-source-uniqueness (“Lam and Leung establish the unique weight-fourteen asymmetric type”) records a bound, answer, status fact, or structural consequence. The record states: Lam and Leung's construction, lower bound, and uniqueness theorem give one rotation class of asymmetric minimal sums at the smallest possible weight 14 for primes 3, 5, and 7.",
  "relevance_source": "recorded",
  "body": "Example 2.5 constructs the minimal sum \\((\\alpha+\\cdots+\\alpha^{p-1})(\\beta+\\cdots+\\beta^{q-1})+\\gamma+\\cdots+\\gamma^{\\ell-1}=0\\) for three distinct primes. With \\((p,q,\\ell)=(3,5,7)\\), its support has \\((3-1)(5-1)+(7-1)=14\\) distinct 105th roots. Lower Bound Theorem 4.8 gives 14 as the minimum support of an asymmetric minimal sum in this case. Uniqueness Theorem 6.5 says every asymmetric minimal element at that support or weight is similar to \\(\\sigma(P_1^*)\\sigma(P_2^*)+\\sigma(P_3^*)\\). The paper defines similarity as rotation. This supplies a source-backed uniqueness result at weight 14. In exponent notation, the construction has support \\(\\{7,14,15,28,30,45,49,56,60,75,77,90,91,98\\}\\); translation by 15 gives this packet's canonical representative.",
  "status": "reported",
  "evidence_grade": "sourced",
  "scope": {
    "kind": "bounded",
    "statement": "asymmetric minimal vanishing sums of 105th roots at support or weight 14, up to rotation",
    "bounds": {
      "conductor": {
        "min": 105,
        "max": 105
      },
      "weight": {
        "min": 14,
        "max": 14
      }
    },
    "exhaustive": true
  },
  "reproduction": {
    "schema": "theoremdb-reproduction-v1",
    "readiness": "source_only",
    "kind": "claim",
    "citation": {
      "url": "https://arxiv.org/abs/math/9511209",
      "locator": "T. Y. Lam and K. H. Leung, On vanishing sums for roots of unity, Example 2.5 on pp. 5-6, Lower Bound Theorem 4.8 on pp. 11-12, and Uniqueness Theorem 6.5 on p. 15; J. Algebra 224 (2000), DOI 10.1006/jabr.1999.8089"
    },
    "missing": [
      "source",
      "command",
      "runtime",
      "expected_output"
    ]
  },
  "formal_statement": null,
  "source": {
    "url": "https://arxiv.org/abs/math/9511209",
    "locator": "T. Y. Lam and K. H. Leung, On vanishing sums for roots of unity, Example 2.5 on pp. 5-6, Lower Bound Theorem 4.8 on pp. 11-12, and Uniqueness Theorem 6.5 on p. 15; J. Algebra 224 (2000), DOI 10.1006/jabr.1999.8089"
  },
  "models": [],
  "relations": [
    {
      "slug": "R529",
      "title": "Audit the literature and current TheoremDB state",
      "object_type": "attempt",
      "relation": "supports",
      "direction": "incoming"
    },
    {
      "slug": "R531",
      "title": "There are seven affine-Galois orbits through weight nineteen",
      "object_type": "claim",
      "relation": "informs",
      "direction": "outgoing"
    },
    {
      "slug": "minimal-vanishing-105th-root-sums",
      "title": "minimal vanishing 105th root sums",
      "object_type": "problem",
      "relation": "recorded_for",
      "direction": "outgoing"
    }
  ]
}

6Provenance

View source, identifiers, and projection details
Project
minimal-vanishing-105th-root-sums-research
Locator
T. Y. Lam and K. H. Leung, On vanishing sums for roots of unity, Example 2.5 on pp. 5-6, Lower Bound Theorem 4.8 on pp. 11-12, and Uniqueness Theorem 6.5 on p. 15; J. Algebra 224 (2000), DOI 10.1006/jabr.1999.8089
License
CC0-1.0
Contributors
T. Y. Lam, K. H. Leung
Public record
R532
Stable alias
minimal105-claim-weight-fourteen-source-uniqueness
Projection
Reproduction fields are derived from the immutable record.

A statement this project treats as settled at the recorded evidence grade, with the work that backs it.

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