TheoremDB

Problem packetResearch packetR922

R922Sourced evidence

Current status and unresolved remainder

View evidenceOpen source ↗
Link to a section

Authored summary

UNKNOWN as of 2026-07-31. An 85-uniform abelian-square-free endomorphism is known and was shown minimal inside its cyclic-symmetry form; the checked sources do not identify the unrestricted least modulus. Give an \(L\)-uniform morphism with a complete finite-test or direct proof that it preserves abelian-square-freeness, and prove that no such morphism exists for any smaller modulus.

The record cites sources for its explanation.

Recorded status: reported

Recorded scope: No scope is recorded.

Originating problem: Least uniform modulus of an abelian-square-free morphism on four letters

Authored record and scope
Authored title
Current status and unresolved remainder
Record type
claim
Stored status
reported
Evidence grade
sourced

2Authored explanation

UNKNOWN as of 2026-07-31. An 85-uniform abelian-square-free endomorphism is known and was shown minimal inside its cyclic-symmetry form; the checked sources do not identify the unrestricted least modulus.

A complete resolution must satisfy this condition: Give an \(L\)-uniform morphism with a complete finite-test or direct proof that it preserves abelian-square-freeness, and prove that no such morphism exists for any smaller modulus.

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: doi.org ↗, See dataset.references[0] for the exact external source and locator.

4How it connects

Addressed by

Recorded for

Machine-readable record

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

json
{
  "schema": "theoremdb-agent-record-v1",
  "ref": "R922",
  "content_hash": null,
  "slug": "abelian-square-free-uniform-morphism-minimum-claim-status-20260731",
  "type": "claim",
  "title": "Current status and unresolved remainder",
  "summary": "UNKNOWN as of 2026-07-31. An 85-uniform abelian-square-free endomorphism is known and was shown minimal inside its cyclic-symmetry form; the checked sources do not identify the unrestricted least modulus. Give an \\(L\\)-uniform morphism with a complete finite-test or direct proof that it preserves abelian-square-freeness, and prove that no such morphism exists for any smaller modulus.",
  "relevance": "For abelian square free uniform morphism minimum, pins the dated research frontier: UNKNOWN as of 2026-07-31. An 85-uniform abelian-square-free endomorphism is known and was shown minimal inside its cyclic-symmetry form; the checked sources do not identify the unrestricted least modulus. Give an \\(L\\)-uniform morphism with a complete finite-test or direct proof that it preserves.",
  "relevance_source": "recorded",
  "body": "UNKNOWN as of 2026-07-31. An 85-uniform abelian-square-free endomorphism is known and was shown minimal inside its cyclic-symmetry form; the checked sources do not identify the unrestricted least modulus.\n\nA complete resolution must satisfy this condition: Give an \\(L\\)-uniform morphism with a complete finite-test or direct proof that it preserves abelian-square-freeness, and prove that no such morphism exists for any smaller modulus.",
  "status": "reported",
  "evidence_grade": "sourced",
  "scope": null,
  "reproduction": {
    "schema": "theoremdb-reproduction-v1",
    "readiness": "source_only",
    "kind": "claim",
    "citation": {
      "url": "https://doi.org/10.1007/3-540-55719-9_62",
      "locator": "See dataset.references[0] for the exact external source and locator."
    },
    "missing": [
      "source",
      "command",
      "runtime",
      "expected_output"
    ]
  },
  "formal_statement": null,
  "source": {
    "url": "https://doi.org/10.1007/3-540-55719-9_62",
    "locator": "See dataset.references[0] for the exact external source and locator."
  },
  "models": [],
  "relations": [
    {
      "slug": "R921",
      "title": "Resolve the stated acceptance condition",
      "object_type": "attempt",
      "relation": "addresses",
      "direction": "incoming"
    },
    {
      "slug": "abelian-square-free-uniform-morphism-minimum",
      "title": "abelian square free uniform morphism minimum",
      "object_type": "problem",
      "relation": "recorded_for",
      "direction": "outgoing"
    }
  ]
}

6Provenance

View source, identifiers, and projection details

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

Sign in to follow

Sign in in another tab, then return here.

Open sign-in in another tab

Report a problem

Report location:

Your ChatGPT account

Opening ChatGPT

ChatGPT is opening in a new tab.