2013/12/21 by Mingyu Xiao, Hiroshi Nagamochi · 2 citations
Computer Science · Mathematics · #1-planar graph #Advanced Graph Theory Research #Algorithm #Bounded function #Chordal graph #Combinatorics #Complexity and Algorithms in Graphs #Computational Geometry and Mesh Generation #Computational complexity theory #Computer science #Degree (music) #Discrete mathematics #Exponential function #Graph #Independent set #Mathematics #Maximal independent set #PSPACE #Set (abstract data type) #Time complexity #Vertex (graph theory) #cs.DS
paper · pdf · doi:10.1016/j.ic.2017.06.001
published as Information and Computation 255(1) (2017):126-146
arxiv created 2013/12/21 · openalex publication_date 2017/06/07 · crossref created 2017/06/07 · crossref issued 2017/08/01 · crossref published 2017/08/01 · crossref published-print 2017/08/01 · arxiv updated 2017/08/08 · crossref deposited 2021/07/31 · openalex created_date 2025/10/10 · crossref indexed 2026/07/21 · openalex updated_date 2026/08/05
We show that the maximum independent set problem (MIS) on an n-vertex graph can be solved in 1.1996nnO(1) time and polynomial space, which even is faster than Robson's 1.2109nnO(1)-time exponential-space algorithm published in 1986. We also obtain improved algorithms for MIS in graphs with maximum degree 6 and 7, which run in time of 1.1893nnO(1) and 1.1970nnO(1), respectively. Our algorithms are obtained by using fast algorithms for MIS in low-degree graphs in a hierarchical way and making a careful analyses on the structure of bounded-degree graphs.