4 search results - page 1 / 1 » Approximating the Crossing Number of Graphs Embeddable in An... |
SODA
2010
ACM
14 years 5 months ago
2010
ACM
The crossing number of a graph is the least number of pairwise edge crossings in a drawing of the graph in the plane. We provide an O(n log n) time constant factor approximation al...
FOCS
2009
IEEE
14 years 2 months ago
2009
IEEE
— We show that for every fixed k, there is a linear time algorithm that decides whether or not a given graph has a vertex set X of order at most k such that G − X is planar (w...
ENDM
2007
13 years 7 months ago
2007
In this paper we investigate how certain results related to the HananiTutte theorem can be extended from the plane to surfaces. We give a simple topological proof that the weak Ha...
SMI
2010
IEEE
13 years 6 months ago
2010
IEEE
—It has recently been shown that if we twist an arbitrary subset of edges of a mesh on an orientable surface, the resulting extended graph rotation system (EGRS) can be used to i...