TheoremDB

Problem packetResearch packetR1377

R1377Sourced evidence

Dated status and exact unresolved remainder

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Authored summary

Unresolved in this packet after the dated source check. Strongest checked result: The MathOverflow page has zero answers. Checked literature gives the logarithmic bound for classical l_p spaces and a general log-squared-type bound, while no source located in the dated search establishes the stated uniform logarithmic bound for all norms. Exact unresolved remainder: Prove the existence of C(epsilon) with the displayed universal quantifiers, or construct a fixed epsilon and a sequence of d-dimensional Banach spaces whose largest epsilon-almost-equilateral sets have subexponential size in d. A quantitative result must state all dependencies on epsilon and may rescale a constructed set only by a single common factor.

The record cites sources for its explanation.

Recorded status: reported

Recorded scope: No scope is recorded.

Originating problem: Logarithmic dimension for almost-equilateral sets in Banach spaces

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

2Authored explanation

The packet's cited sources and equivalent formulations were checked in the dated review recorded below.

Strongest checked result: The MathOverflow page has zero answers. Checked literature gives the logarithmic bound for classical l_p spaces and a general log-squared-type bound, while no source located in the dated search establishes the stated uniform logarithmic bound for all norms.

Exact unresolved remainder: Prove the existence of C(epsilon) with the displayed universal quantifiers, or construct a fixed epsilon and a sequence of d-dimensional Banach spaces whose largest epsilon-almost-equilateral sets have subexponential size in d. A quantitative result must state all dependencies on epsilon and may rescale a constructed set only by a single common factor.

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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: doi.org ↗, main low-dimensional embedding theorem and coding construction for finite ultrametrics in classical l_p spaces

4What was measured

5How it connects

Replaces

Recorded for

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  "type": "claim",
  "title": "Dated status and exact unresolved remainder",
  "summary": "Unresolved in this packet after the dated source check. Strongest checked result: The MathOverflow page has zero answers. Checked literature gives the logarithmic bound for classical l_p spaces and a general log-squared-type bound, while no source located in the dated search establishes the stated uniform logarithmic bound for all norms. Exact unresolved remainder: Prove the existence of C(epsilon) with the displayed universal quantifiers, or construct a fixed epsilon and a sequence of d-dimensional Banach spaces whose largest epsilon-almost-equilateral sets have subexponential size in d. A quantitative result must state all dependencies on epsilon and may rescale a constructed set only by a single common factor.",
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      "url": "https://doi.org/10.1016/j.ejc.2003.08.003",
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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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