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Erdős problem 28

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If A⊆NA ⊆ \mathbb{N} is such that A+AA + A contains all but finitely many integers then lim sup⁡1A∗1A(n)=∞\limsup 1_A ∗ 1_A(n) = \infty.

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Exact provenance

Problem row
sha256:78a869cacb41a0ad0291080d1ccc4ba85d5255ec9eb06400c10865e169729626
Metadata
sha256:6cf955dae585cbd5dced2d6ce0e1efcdd618700dc94c7b6ca68af2ae2a664b56
Observation
sha256:9c8326e865b6017b103af7611c852a06776d81964979b8ab5a1b800cd550dff6
Content
sha256:fc2c2bfdb7aa830216a442a5f5a2b9dc3315f1c67183df39eed658d24af993e8
Repository
sha256:a956b84c437202e5a02cc9e036a621bd14a302b34a75758115730bdbb77c52a4
Projection
sha256:a4a96441668a9f8b33afbcb3f696a2639f5fae145f36ddc063d7f67d5fb87ce8
Source commit
36c6d0fef71a3fec84d9dcd5eeca4e22e378f7cb
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