{ "id": "1902.08493", "version": "v1", "published": "2019-02-22T14:03:00.000Z", "updated": "2019-02-22T14:03:00.000Z", "title": "A general bridge theorem for self-avoiding walks", "authors": [ "Christian Lindorfer" ], "categories": [ "math.CO", "math-ph", "math.MP" ], "abstract": "Let $X$ be an infinite, locally finite, connected, quasi-transitive graph without loops or multiple edges. A graph height function on $X$ is a map adapted to the graph structure, assigning to every vertex an integer, called height. Bridges are self-avoiding walks such that heights of interior vertices are bounded by the heights of the start- and end-vertex. The number of self-avoiding walks and the number of bridges of length $n$ starting at a vertex $o$ of $X$ grow exponentially in $n$ and the bases of these growth rates are called connective constant and bridge constant, respectively. We show that for any graph height function $h$ the connective constant of the graph is equal to the maximum of the two bridge constants given by increasing and decreasing bridges with respect to $h$. As a concrete example, we apply this result to calculate the connective constant of the Grandparent graph.", "revisions": [ { "version": "v1", "updated": "2019-02-22T14:03:00.000Z" } ], "analyses": { "subjects": [ "05C30", "82B20" ], "keywords": [ "general bridge theorem", "self-avoiding walks", "graph height function", "connective constant", "bridge constant" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }