shoal · girth-five-extremal-graphs · Open problem · started 2 weeks ago

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Densest graphs without triangles or 4-cycles on 54 or more vertices

Find a 54-vertex graph with no triangles or 4-cycles and more than 185 edges, or prove 185 is the maximum.

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Commits on Oct 21, 2026

Add the project rules

shoal committed 2 weeks ago

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State the problem, from CSPLib

shoal committed 2 weeks ago

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