On Independent Sets and Bicliques in Graphs

On Independent Sets and Bicliques in Graphs

0.00 Avg rating0 Votes
Article ID: iaor2012405
Volume: 62
Issue: 3
Start Page Number: 637
End Page Number: 658
Publication Date: Apr 2012
Journal: Algorithmica
Authors: , ,
Keywords: sets
Abstract:

Bicliques of graphs have been studied extensively, partially motivated by the large number of applications. In this paper we improve Prisner’s upper bound on the number of maximal bicliques (Combinatorica, 20, 109–117, 2000) and show that the maximum number of maximal bicliques in a graph on n vertices is Θ(3 n/3). Our major contribution is an exact exponential‐time algorithm. This branching algorithm computes the number of distinct maximal independent sets in a graph in time O(1.3642 n ), where n is the number of vertices of the input graph. We use this counting algorithm and previously known algorithms for various other problems related to independent sets to derive algorithms for problems related to bicliques via polynomial‐time reductions.

Reviews

Required fields are marked *. Your email address will not be published.