Random-graph conjecture on bounded expected nontrivial invariant factors

Let \EuScriptG(n,p)\EuScript{G}(n,p) be a random simple undirected graph with nn vertices and edge-probability 0p10\leq p\leq 1. For c>1c>1, assume clog(n)/n<p(n)<1o(log(n)/n)c\log(n)/n<p(n)<1-o(\log(n)/n). Bounded-expectation conjecture. As nn\to\infty, the expected value of ν(\EuScriptG(n,p))\nu(\EuScript{G}(n,p)) remains bounded. This is presented as a weaker and potentially more accessible form of the preceding cyclicity conjecture. The source gives no resolution and only motivates it through the preceding discussion of critical groups and Smith normal forms.

Sources & referencesView supporting material

Primary source

David G. Wagner, “The critical group of a directed graph”, arXiv:math/0010241 (2000).

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