677 search results - page 9 / 136 » Bipartite roots of graphs |
TCS
2010
13 years 2 months ago
2010
In this paper we show that the problem of finding a chordless path between a vertex s and a vertex t containing a vertex v remains NP-complete in bipartite graphs, thereby strengt...
ECCC
2010
13 years 2 months ago
2010
Consider a graph obtained by taking an edge disjoint union of k complete bipartite graphs.
DAM
2008
13 years 7 months ago
2008
Polar graphs are a natural extension of some classes of graphs like bipartite graphs, split graphs and complements of bipartite graphs. A graph is (s, k)-polar if there exists a pa...
ISAAC
2004
Springer
14 years 22 days ago
2004
Springer
We study complexity and approximation of min weighted node coloring in planar, bipartite and split graphs. We show that this problem is NP-complete in planar graphs, even if they a...
ARSCOM
2006
13 years 7 months ago
2006
ABSTRACT. The Levi graph of a balanced incomplete block design is the bipartite graph whose vertices are the points and blocks of the design, with each block adjacent to those poin...