Algebraic bounds for heterogeneous site percolation on directed and undirected graphs

Kathleen E. Hamilton, Leonid P. Pryadko

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We analyze site percolation on directed and undirected graphs with site-dependent open-site probabilities. We construct upper bounds on cluster susceptibilities, vertex connectivity functions, and the expected number of simple open cycles through a chosen arc; separate bounds are given on finite and infinite (di)graphs. These produce lower bounds for percolation and uniqueness transitions in infinite (di)graphs, and for the formation of a giant component in finite (di)graphs. The bounds are formulated in terms of appropriately weighted adjacency and non-backtracking (Hashimoto) matrices. It turns out to be the uniqueness criterion that is most closely associated with an asymptotically vanishing probability of forming a giant strongly-connected component on a large finite (di)graph.

Original languageEnglish
Pages (from-to)124-142
Number of pages19
JournalDiscrete Applied Mathematics
Volume222
DOIs
StatePublished - May 11 2017

Funding

FundersFunder number
Directorate for Mathematical and Physical Sciences1416578

    Keywords

    • Digraph
    • Infinite graph
    • Non-backtracking spectra
    • Percolation
    • Vertex connectivity

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