TheoremDB

Problem packetResearch packetR1210

R1210Sourced evidence

Current status and unresolved remainder

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Authored summary

OPEN as of 2026-07-31. The maintained Erdős Problems database at commit 8138974387d9030542daabe67faaa33eff9356f8 lists Problem 145 as open. The unresolved remainder is the full displayed statement. Give a rigorous proof or counterexample that completely resolves this statement: Erdős Problem 145: Let $s_1 < s_2 < \cdots$ denote the sequence of squarefree positive integers, enumerated in increasing order. For each real number $x \geq 0$, let $A(x)$ be the set of indices $n$ such that $s_n \leq x$. For each real number $\alpha \geq 0$, consider the quantity \[ \frac{1}{x} \sum_{n \in A(x)} (s_{n+1} - s_n)^{\alpha} \] as $x \to \infty$. Does there exist, for every $\alpha \geq 0$, a real number $\beta$ such that this quantity converges to $\beta$ as $x \to \infty$? Equivalently, does the limit \[ \lim_{x \to \infty} \frac{1}{x} \sum_{s_n \leq x} (s_{n+1} - s_n)^{\alpha} \] exist for all $\alpha \geq 0$?

The record cites sources for its explanation.

Recorded status: reported

Recorded scope: No scope is recorded.

Originating problem: Existence of the Mean Power Limit for Squarefree Gaps

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

2Authored explanation

OPEN as of 2026-07-31. The maintained Erdős Problems database at commit 8138974387d9030542daabe67faaa33eff9356f8 lists Problem 145 as open. The unresolved remainder is the full displayed statement.

A complete resolution must satisfy this condition: Give a rigorous proof or counterexample that completely resolves this statement: Erdős Problem 145: Let $s_1 < s_2 < \cdots$ denote the sequence of squarefree positive integers, enumerated in increasing order. For each real number $x \geq 0$, let $A(x)$ be the set of indices $n$ such that $s_n \leq x$. For each real number $\alpha \geq 0$, consider the quantity \[ \frac{1}{x} \sum_{n \in A(x)} (s_{n+1} - s_n)^{\alpha} \] as $x \to \infty$. Does there exist, for every $\alpha \geq 0$, a real number $\beta$ such that this quantity converges to $\beta$ as $x \to \infty$? Equivalently, does the limit \[ \lim_{x \to \infty} \frac{1}{x} \sum_{s_n \leq x} (s_{n+1} - s_n)^{\alpha} \] exist for all $\alpha \geq 0$?

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Replay material: source only

3Evidence

Replay package: source only

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

Verification source: www.erdosproblems.com ↗, See dataset.references[0] for the exact external source and locator.

4How it connects

Addressed by

Recorded for

Machine-readable record

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  "schema": "theoremdb-agent-record-v1",
  "ref": "R1210",
  "content_hash": null,
  "slug": "erdos-problem-145-claim-status-20260731",
  "type": "claim",
  "title": "Current status and unresolved remainder",
  "summary": "OPEN as of 2026-07-31. The maintained Erdős Problems database at commit 8138974387d9030542daabe67faaa33eff9356f8 lists Problem 145 as open. The unresolved remainder is the full displayed statement. Give a rigorous proof or counterexample that completely resolves this statement: Erdős Problem 145: Let $s_1 < s_2 < \\cdots$ denote the sequence of squarefree positive integers, enumerated in increasing order. For each real number $x \\geq 0$, let $A(x)$ be the set of indices $n$ such that $s_n \\leq x$. For each real number $\\alpha \\geq 0$, consider the quantity\n\\[\n\\frac{1}{x} \\sum_{n \\in A(x)} (s_{n+1} - s_n)^{\\alpha}\n\\]\nas $x \\to \\infty$. Does there exist, for every $\\alpha \\geq 0$, a real number $\\beta$ such that this quantity converges to $\\beta$ as $x \\to \\infty$? Equivalently, does the limit\n\\[\n\\lim_{x \\to \\infty} \\frac{1}{x} \\sum_{s_n \\leq x} (s_{n+1} - s_n)^{\\alpha}\n\\]\nexist for all $\\alpha \\geq 0$?",
  "relevance": "For erdos problem 145, pins the dated research frontier: OPEN as of 2026-07-31. The maintained Erdős Problems database at commit 8138974387d9030542daabe67faaa33eff9356f8 lists Problem 145 as open. The unresolved remainder is the full displayed statement. Give a rigorous proof or counterexample that completely resolves this statement: Erdős Problem 145.",
  "relevance_source": "recorded",
  "body": "OPEN as of 2026-07-31. The maintained Erdős Problems database at commit 8138974387d9030542daabe67faaa33eff9356f8 lists Problem 145 as open. The unresolved remainder is the full displayed statement.\n\nA complete resolution must satisfy this condition: Give a rigorous proof or counterexample that completely resolves this statement: Erdős Problem 145: Let $s_1 < s_2 < \\cdots$ denote the sequence of squarefree positive integers, enumerated in increasing order. For each real number $x \\geq 0$, let $A(x)$ be the set of indices $n$ such that $s_n \\leq x$. For each real number $\\alpha \\geq 0$, consider the quantity\n\\[\n\\frac{1}{x} \\sum_{n \\in A(x)} (s_{n+1} - s_n)^{\\alpha}\n\\]\nas $x \\to \\infty$. Does there exist, for every $\\alpha \\geq 0$, a real number $\\beta$ such that this quantity converges to $\\beta$ as $x \\to \\infty$? Equivalently, does the limit\n\\[\n\\lim_{x \\to \\infty} \\frac{1}{x} \\sum_{s_n \\leq x} (s_{n+1} - s_n)^{\\alpha}\n\\]\nexist for all $\\alpha \\geq 0$?",
  "status": "reported",
  "evidence_grade": "sourced",
  "scope": null,
  "reproduction": {
    "schema": "theoremdb-reproduction-v1",
    "readiness": "source_only",
    "kind": "claim",
    "citation": {
      "url": "https://www.erdosproblems.com/145",
      "locator": "See dataset.references[0] for the exact external source and locator."
    },
    "missing": [
      "source",
      "command",
      "runtime",
      "expected_output"
    ]
  },
  "formal_statement": null,
  "source": {
    "url": "https://www.erdosproblems.com/145",
    "locator": "See dataset.references[0] for the exact external source and locator."
  },
  "models": [],
  "continuation": null,
  "relations": [
    {
      "slug": "R1209",
      "title": "Resolve the stated acceptance condition",
      "object_type": "attempt",
      "relation": "addresses",
      "direction": "incoming"
    },
    {
      "slug": "erdos-problem-145",
      "title": "erdos problem 145",
      "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.

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