223 search results - page 5 / 45 » On Computing Longest Paths in Small Graph Classes |
DAM
2011
13 years 2 months ago
2011
In 1988, Golumbic and Hammer characterized powers of cycles, relating them to circular-arc graphs. We extend their results and propose several further structural characterizations ...
FSTTCS
2008
Springer
13 years 8 months ago
2008
Springer
ABSTRACT. We study the problem of space-efficient polynomial-time algorithms for directed stconnectivity (STCON). Given a directed graph G, and a pair of vertices s, t, the STCON ...
OPODIS
2008
13 years 8 months ago
2008
Kleinberg [17] proposed in 2000 the first random graph model achieving to reproduce small world navigability, i.e. the ability to greedily discover polylogarithmic routes between a...
COMGEO
1999
ACM
13 years 7 months ago
1999
ACM
Let S be a set of n points in IRd and let t > 1 be a real number. A t-spanner for S is a directed graph having the points of S as its vertices, such that for any pair p and q o...
CCCG
2007
13 years 8 months ago
2007
In the minimum-cost k-hop spanning tree (k-hop MST) problem, we are given a set S of n points in a metric space, a positive small integer k and a root point r ∈ S. We are intere...