{ "id": "2009.12680", "version": "v1", "published": "2020-09-26T20:33:18.000Z", "updated": "2020-09-26T20:33:18.000Z", "title": "Generalizing Kirchhoff laws for Signed Graphs", "authors": [ "Lucas J. Rusnak", "Josephine Reynes", "Skyler J. Johnson", "Peter Ye" ], "comment": "22 pages, 16 figures", "categories": [ "math.CO" ], "abstract": "Kirchhoff-type Laws for signed graphs are characterized by generalizing transpedances through the incidence-oriented structure of bidirected graphs. The classical $2$-arborescence interpretation of Tutte is shown to be equivalent to single-element Boolean classes of reduced incidence-based cycle covers, called contributors. A generalized contributor-transpedance is introduced using entire Boolean classes that naturally cancel in a graph; classical conservation is proven to be property of the trivial Boolean classes. The contributor-transpedances on signed graphs are shown to produce non-conservative Kirchhoff-type Laws, where every contributor possesses the unique source-sink path property. Finally, the maximum value of a contributor-transpedance is calculated through the signless Laplacian.", "revisions": [ { "version": "v1", "updated": "2020-09-26T20:33:18.000Z" } ], "analyses": { "subjects": [ "05C22", "05C05", "05C50", "05B20", "05B45" ], "keywords": [ "signed graphs", "generalizing kirchhoff laws", "unique source-sink path property", "single-element boolean classes", "produce non-conservative kirchhoff-type laws" ], "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable" } } }