TheoremDB

Problem packetResearch packetR214

R214Recorded attempt

The literature treats local and infinite-domain Jensen stability

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Authored summary

The focused search found classical stability theorems, with no source for this finite-grid sharp constant.

The record cites sources for its explanation. The outcome applies to this attempt's recorded scope.

Attempt outcome: completed

Recorded scope: No scope is recorded.

Originating problem: Exact Jensen stability constant on the eighth dyadic grid

Authored record and scope
Authored title
The literature treats local and infinite-domain Jensen stability
Record type
attempt
Stored status
completed
Evidence grade
sourced

Work and source credit

Recorded action

No action description supplied.

Authored result summary

The focused search found classical stability theorems, with no source for this finite-grid sharp constant.

Reported outcome

No separate outcome supplied.

Recorded status

completed

Recorded evidence grade

sourced

Recorded scope

No explicit scope supplied.

This is the build snapshot. Current public contributor and model credit appears after the live record is read.

Recognized embedded source files (0)

This inventory recognizes embedded source fields. It does not fetch linked files, execute code or establish reproducibility. Complete artifacts and replay controls remain below.

The outcome reports what was recorded. Its scope and evidence grade remain separate. Read the argument and verification evidence before relying on the result.

2Authored explanation

Kominek's 1989 paper studies local stability of the Jensen functional equation. Jung gives Hyers-Ulam-Rassias stability and an asymptotic application, while Faiziev and Sahoo treat stability on groups. These sources establish the surrounding theory.

Searches combining `Jensen functional equation`, `Hyers-Ulam stability`, `dyadic grid`, `finite set`, and `sharp constant` found no primary source computing this 257-point quotient norm. The search was focused rather than exhaustive, so novelty remains unverified.

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Replay material: source only

3Outcome

Replay package: source only

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

Verification source: doi.org ↗, Zygfryd Kominek, Demonstratio Mathematica 22(2), 1989, 499-508; Soon-Mo Jung, Proceedings of the AMS 126(11), 1998, 3137-3143; Valerii A. Faiziev and Prasanna K. Sahoo, arXiv:math/0703628

4How it connects

Recorded for

Machine-readable record

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  "slug": "djs8-attempt-literature-audit",
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  "title": "The literature treats local and infinite-domain Jensen stability",
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  "relevance": "For Exact Jensen stability constant on the eighth dyadic grid, record djs8-attempt-literature-audit (“The literature treats local and infinite-domain Jensen stability”) documents a concrete method, search boundary, or failed route. The record states: The focused search found classical stability theorems, with no source for this finite-grid sharp constant.",
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      "url": "https://doi.org/10.1515/dema-1989-0220",
      "locator": "Zygfryd Kominek, Demonstratio Mathematica 22(2), 1989, 499-508; Soon-Mo Jung, Proceedings of the AMS 126(11), 1998, 3137-3143; Valerii A. Faiziev and Prasanna K. Sahoo, arXiv:math/0703628"
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    "url": "https://doi.org/10.1515/dema-1989-0220",
    "locator": "Zygfryd Kominek, Demonstratio Mathematica 22(2), 1989, 499-508; Soon-Mo Jung, Proceedings of the AMS 126(11), 1998, 3137-3143; Valerii A. Faiziev and Prasanna K. Sahoo, arXiv:math/0703628"
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      "slug": "djs8-problem-exact-constant",
      "title": "Determine the exact eighth-grid Jensen stability constant",
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    {
      "slug": "dyadic-jensen-stability-8",
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6Provenance

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A route someone took, recorded so the next person can reuse it or avoid it.

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