Research notes on every problem, and a library of the papers behind them. Built from the open erdos repository.
Updated
Claim. The account herong, in a comment of 17 September 2026 (the claim's date) on the site's discussion thread, reports an independent decider for the statement of Problem 583 on small graphs. It prunes with a lower bound on the number of paths inside each component of the uncovered part, the largest of , , and , summed over the components; the term is new (a simple path uses at most two edges at a vertex). Its exhaustive sweeps at , and (, and connected graphs, the shard counts checked against OEIS A001349) find no counterexample and nothing undecided. As a control, on all connected graphs of order with the path budget cut to and then to , its decider and the search of the earlier comment by sallerk, fitted with the same bound, report identical sets of undecomposable graphs. The code and logs are in a public repository, linked above at its commit of 17 September 2026, and the comment discloses that the decider and the write-up were prepared with assistance from Claude (Anthropic).
Covers. Connected graphs on at most vertices. Nothing for : the sweep ( graphs) was reported as running, and no outcome was posted.
Depends on. Nothing in this wiki.
Standing. Claimed: a forum computation, which the site does not verify, independent of and agreeing with sallerk's check; not reviewed and given no credit by this corpus, which has not run it. The claim is partial, so the problem's standing is unchanged by it.