Negative association for up-events and edges in uniform spanning trees

Let GG be a finite connected graph, let T{\bf T} be a uniform spanning tree, let ee be an edge, and let AA be an up-event, meaning an upwardly closed event in the space of subgraphs of GG, that ignores ee, meaning that for every subgraph HH one has HAH\in A if and only if HeAH\cup e\in A. Negative-association conjecture.

P(A and eT)P(A)P(eT).{\bf P}(A\text{ and }e\in{\bf T})\leq {\bf P}(A){\bf P}(e\in{\bf T}).

This would strengthen the preceding pairwise negative-correlation theorem for edges of a uniform spanning tree. The source explicitly states that the truth or falsity of this assertion is unknown.

Sources & referencesView supporting material

Primary source

Robin Pemantle, “Uniform random spanning trees”, arXiv:math/0404099 (2004).

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