TheoremDB

Problem packetResearch packetR89

R89Reproduced evidence

An exact integer witness attains ratio 1.3303042705991634737...

View evidenceOpen source ↗
Link to a section

Authored summary

All active radii and the squared norm quotient are verified with rational arithmetic.

The recorded result has been reproduced within its stated scope.

Recorded status: established

Recorded scope: one explicit nonnegative integer vector on C_31, with every one of its 496 centered averages compared exactly

Complete recorded scope and conditions
{
  "kind": "bounded",
  "statement": "one explicit nonnegative integer vector on C_31, with every one of its 496 centered averages compared exactly",
  "bounds": {
    "cycle_order": {
      "min": 31,
      "max": 31
    },
    "coordinates": {
      "min": 31,
      "max": 31
    },
    "averages_checked": {
      "min": 496,
      "max": 496
    }
  },
  "exhaustive": true
}

Originating problem: Sharp L2 norm of the centered maximal operator on C_31

Recorded relationships: The L2 norm lies between 1.33030427059916347 and 1.63067915195310467

Authored record and scope
Authored title
An exact integer witness attains ratio 1.3303042705991634737...
Record type
claim
Stored status
established
Evidence grade
reproduced
Recorded scope data
{ "kind": "bounded", "statement": "one explicit nonnegative integer vector on C_31, with every one of its 496 centered averages compared exactly", "bounds": { "cycle_order": { "min": 31, "max": 31 }, "coordinates": { "min": 31, "max": 31 }, "averages_checked": { "min": 496, "max": 496 } }, "exhaustive": true }
Linked research record IDs
R87

2Authored explanation

In cyclic coordinate order, take \[ \begin{aligned} x={}&(60240784093944,71756706270677,71756706270677,69429053137658,\\ &69429053137658,124946197568962,124946197568962,634350542282289,\\ &220384421138340,634350542282289,124946197568962,124946197568962,\\ &69429053137658,69429053137658,71756706270677,71756706270677,\\ &60240784093944,60240784093944,53164211021439,53164211021439,\\ &49020565351307,49020565351307,47095643667602,47095643667602,\\ &47095643667602,47095643667602,49020565351307,49020565351307,\\ &53164211021439,53164211021439,60240784093944). \end{aligned} \] Exact comparison of the sixteen averages at every coordinate selects the radii \[ (9,8,7,6,5,4,1,0,1,0,1,4,5,6,7,8,9,10,11,12,13,15,15,15,15,15,15,13,12,11,10). \] There are no ties. Direct rational summation gives \[ \frac{\|Mx\|_2^2}{\|x\|_2^2} =\frac{95224622960985697907125617859822805279079620426252}{53808054668649331334697257108564850111138302100375}. \] This quotient exceeds \((1.3303042705)^2\) by exact integer comparison.

Continue this work
Replay material: source only

3Evidence

Replay package: source only

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

Verification source: arxiv.org ↗, The integer witness and all active-radius comparisons are replayed in c31m-artifact-exact-replay

4What was measured

5How it connects

Evidenced by

Recorded for

Machine-readable record

Copy the structured record when continuing this work with an agent.

json
{
  "schema": "theoremdb-agent-record-v1",
  "ref": "R89",
  "content_hash": null,
  "slug": "c31m-claim-exact-lower-witness",
  "type": "claim",
  "title": "An exact integer witness attains ratio 1.3303042705991634737...",
  "summary": "All active radii and the squared norm quotient are verified with rational arithmetic.",
  "relevance": "For Sharp L2 norm of the centered maximal operator on C_31, record c31m-claim-exact-lower-witness (“An exact integer witness attains ratio 1.3303042705991634737...”) records a bound, answer, status fact, or structural consequence. The record states: All active radii and the squared norm quotient are verified with rational arithmetic.",
  "relevance_source": "recorded",
  "body": "In cyclic coordinate order, take\n\\[\n\\begin{aligned}\nx={}&(60240784093944,71756706270677,71756706270677,69429053137658,\\\\\n&69429053137658,124946197568962,124946197568962,634350542282289,\\\\\n&220384421138340,634350542282289,124946197568962,124946197568962,\\\\\n&69429053137658,69429053137658,71756706270677,71756706270677,\\\\\n&60240784093944,60240784093944,53164211021439,53164211021439,\\\\\n&49020565351307,49020565351307,47095643667602,47095643667602,\\\\\n&47095643667602,47095643667602,49020565351307,49020565351307,\\\\\n&53164211021439,53164211021439,60240784093944).\n\\end{aligned}\n\\]\nExact comparison of the sixteen averages at every coordinate selects the radii\n\\[\n(9,8,7,6,5,4,1,0,1,0,1,4,5,6,7,8,9,10,11,12,13,15,15,15,15,15,15,13,12,11,10).\n\\]\nThere are no ties. Direct rational summation gives\n\\[\n\\frac{\\|Mx\\|_2^2}{\\|x\\|_2^2}\n=\\frac{95224622960985697907125617859822805279079620426252}{53808054668649331334697257108564850111138302100375}.\n\\]\nThis quotient exceeds \\((1.3303042705)^2\\) by exact integer comparison.",
  "status": "established",
  "evidence_grade": "reproduced",
  "scope": {
    "kind": "bounded",
    "statement": "one explicit nonnegative integer vector on C_31, with every one of its 496 centered averages compared exactly",
    "bounds": {
      "cycle_order": {
        "min": 31,
        "max": 31
      },
      "coordinates": {
        "min": 31,
        "max": 31
      },
      "averages_checked": {
        "min": 496,
        "max": 496
      }
    },
    "exhaustive": true
  },
  "reproduction": {
    "schema": "theoremdb-reproduction-v1",
    "readiness": "source_only",
    "kind": "claim",
    "citation": {
      "url": "https://arxiv.org/abs/2005.03146",
      "locator": "The integer witness and all active-radius comparisons are replayed in c31m-artifact-exact-replay"
    },
    "missing": [
      "source",
      "command",
      "runtime",
      "expected_output"
    ]
  },
  "formal_statement": null,
  "source": {
    "url": "https://arxiv.org/abs/2005.03146",
    "locator": "The integer witness and all active-radius comparisons are replayed in c31m-artifact-exact-replay"
  },
  "models": [],
  "relations": [
    {
      "slug": "R87",
      "title": "The L2 norm lies between 1.33030427059916347 and 1.63067915195310467",
      "object_type": "claim",
      "relation": "supports",
      "direction": "outgoing"
    },
    {
      "slug": "R85",
      "title": "Exact lower-witness and upper-certificate replay",
      "object_type": "artifact",
      "relation": "evidences",
      "direction": "incoming"
    },
    {
      "slug": "c31-centered-maximal-l2-norm",
      "title": "c31 centered maximal l2 norm",
      "object_type": "problem",
      "relation": "recorded_for",
      "direction": "outgoing"
    }
  ]
}

7Provenance

View source, identifiers, and projection details

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

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