Erdős problem 1008 · problems.science

Does every graph with $m$ edges contain a subgraph with $\gg m^{2/3}$ edges which contains no $C_4$ ?

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Problem row: sha256:252f06b856bb51509dfd720fbefe11d5591b461f3fc72822f96c2173b8c9fc0a
Metadata: sha256:05e22119deefe229fb30a06761056cfa21b0c47e4a2019ddd78340ac92e2bb1b
Observation: sha256:8c823d621b7e1256c8e47c60a5f1c54c016a5507e6f27b2bab537f6f5f232067
Content: sha256:d4b076b8f5f375f482d5f2ca44796680d1dd1c402176e29413ab3b373f6c2834

Repository: sha256:a956b84c437202e5a02cc9e036a621bd14a302b34a75758115730bdbb77c52a4
Projection: sha256:c9d14c459c518937e758918b5897dc3b22f1a55f07739afe99502f5b046c907a
Source commit: 2415f78e850aeee50afdca525c6f2e0ea606f207