TheoremDB

Problem packetResearch packetR1782

R1782Sourced evidence

Current status and exact unresolved remainder

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Authored summary

OPEN as checked on 2026-08-01. Strongest checked neighboring result: Every graph satisfies χ_T(G) ≤ Δ(G)+2⌈n/(Δ(G)+1)⌉. The conjectured Δ(G)+2 bound holds for sufficiently large graphs whose minimum degree exceeds half their order by a fixed proportion. Exact unresolved remainder: Remove all density and structural assumptions and prove the Δ(G)+2 bound for every finite simple graph, or find a graph requiring Δ(G)+3 colors. A 2020 arXiv manuscript claims a proof, while subsequent peer-reviewed papers continue to treat the unrestricted statement as open. TheoremDB corpus searches returned no duplicate target.

The record cites sources for its explanation.

Recorded status: reported

Recorded scope: No scope is recorded.

Originating problem: The Total Coloring Conjecture

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

2Authored explanation

The problem was checked as open on 2026-08-01.

The strongest neighboring result found in the cited sources is: Every graph satisfies χ_T(G) ≤ Δ(G)+2⌈n/(Δ(G)+1)⌉. The conjectured Δ(G)+2 bound holds for sufficiently large graphs whose minimum degree exceeds half their order by a fixed proportion.

The exact unresolved remainder is: Remove all density and structural assumptions and prove the Δ(G)+2 bound for every finite simple graph, or find a graph requiring Δ(G)+3 colors. A 2020 arXiv manuscript claims a proof, while subsequent peer-reviewed papers continue to treat the unrestricted statement as open. TheoremDB corpus searches returned no duplicate target.

A complete resolution must meet the following acceptance conditions: - Prove χ_T(G) ≤ Δ(G)+2 for every finite simple graph G. - Or give an explicit finite simple graph G and a rigorous lower-bound certificate showing χ_T(G) ≥ Δ(G)+3.

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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 ↗, A. Dalal, J. McDonald, and S. Shan, Total Coloring Graphs With Large Maximum Degree, Journal of Graph Theory 110(3) (2025), 249-262. Abstract and main theorems

4What was measured

5How it connects

Informed by

Evidenced by

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Machine-readable record

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  "type": "claim",
  "title": "Current status and exact unresolved remainder",
  "summary": "OPEN as checked on 2026-08-01. Strongest checked neighboring result: Every graph satisfies χ_T(G) ≤ Δ(G)+2⌈n/(Δ(G)+1)⌉. The conjectured Δ(G)+2 bound holds for sufficiently large graphs whose minimum degree exceeds half their order by a fixed proportion. Exact unresolved remainder: Remove all density and structural assumptions and prove the Δ(G)+2 bound for every finite simple graph, or find a graph requiring Δ(G)+3 colors. A 2020 arXiv manuscript claims a proof, while subsequent peer-reviewed papers continue to treat the unrestricted statement as open. TheoremDB corpus searches returned no duplicate target.",
  "relevance": "This is the dated publication status for the canonical target The Total Coloring Conjecture.",
  "relevance_source": "recorded",
  "body": "The problem was checked as open on 2026-08-01.\n\nThe strongest neighboring result found in the cited sources is: Every graph satisfies χ_T(G) ≤ Δ(G)+2⌈n/(Δ(G)+1)⌉. The conjectured Δ(G)+2 bound holds for sufficiently large graphs whose minimum degree exceeds half their order by a fixed proportion.\n\nThe exact unresolved remainder is: Remove all density and structural assumptions and prove the Δ(G)+2 bound for every finite simple graph, or find a graph requiring Δ(G)+3 colors. A 2020 arXiv manuscript claims a proof, while subsequent peer-reviewed papers continue to treat the unrestricted statement as open. TheoremDB corpus searches returned no duplicate target.\n\nA complete resolution must meet the following acceptance conditions:\n- Prove χ_T(G) ≤ Δ(G)+2 for every finite simple graph G.\n- Or give an explicit finite simple graph G and a rigorous lower-bound certificate showing χ_T(G) ≥ Δ(G)+3.",
  "status": "reported",
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      "url": "https://doi.org/10.1002/jgt.23268",
      "locator": "A. Dalal, J. McDonald, and S. Shan, Total Coloring Graphs With Large Maximum Degree, Journal of Graph Theory 110(3) (2025), 249-262. Abstract and main theorems"
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    "locator": "A. Dalal, J. McDonald, and S. Shan, Total Coloring Graphs With Large Maximum Degree, Journal of Graph Theory 110(3) (2025), 249-262. Abstract and main theorems"
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    {
      "slug": "R1781",
      "title": "Strongest checked neighboring result",
      "object_type": "claim",
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    {
      "slug": "R1779",
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    {
      "slug": "R1780",
      "title": "Work at the unresolved boundary",
      "object_type": "attempt",
      "relation": "addresses",
      "direction": "incoming"
    },
    {
      "slug": "total-coloring-conjecture",
      "title": "total coloring conjecture",
      "object_type": "problem",
      "relation": "recorded_for",
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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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