Proves a multi-body extension of the Dobrushin-Sokal criterion for convergence of cluster expansions, using a hypergraph partition scheme and combinable with Gruber-Kunz conditions.
New bounds from an old approach
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A Multi-Body Dobrushin-Sokal Criterion -- Part II
Proves a multi-body extension of the Dobrushin-Sokal criterion for convergence of cluster expansions, using a hypergraph partition scheme and combinable with Gruber-Kunz conditions.