Hostname: page-component-74656f9884-g96k6 Total loading time: 0 Render date: 2026-11-10T02:52:42.589Z Has data issue: false hasContentIssue false

A Graph Polynomial for Independent Sets of Bipartite Graphs

Published online by Cambridge University Press:  10 July 2012

Q. GE
Affiliation:
Department of Computer Science, University of Rochester, Rochester, NY 14627–0226, USA (e-mail: qge@cs.rochester.edu and stefanko@cs.rochester.edu)
D. ŠTEFANKOVIČ
Affiliation:
Department of Computer Science, University of Rochester, Rochester, NY 14627–0226, USA (e-mail: qge@cs.rochester.edu and stefanko@cs.rochester.edu)
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the 'Save PDF' action button.

We introduce a new graph polynomial that encodes interesting properties of graphs, for example, the number of matchings, the number of perfect matchings, and, for bipartite graphs, the number of independent sets (#BIS).

We analyse the complexity of exact evaluation of the polynomial at rational points and show a dichotomy result: for most points exact evaluation is #P-hard (assuming the generalized Riemann hypothesis) and for the rest of the points exact evaluation is trivial.

Information

Type
Paper
Copyright
Copyright © Cambridge University Press 2012