182 search results - page 2 / 37 » Routing Tree Problems on Random Graphs |
FCT
2009
Springer
13 years 12 months ago
2009
Springer
We study the empire colouring problem (as defined by Percy Heawood in 1890) for maps whose dual planar graph is a tree, with empires formed by exactly r countries. We prove that, ...
SODA
1997
ACM
13 years 6 months ago
1997
ACM
The permutation routing problem is studied for trees under the matching model. By introducing a novel and useful (so-called) caterpillar tree partition, we prove that any permutati...
GECCO
2005
Springer
13 years 10 months ago
2005
Springer
Among the many codings of spanning trees for evolutionary search are those based on bijections between Pr¨ufer strings—strings of n−2 vertex labels—and spanning trees on th...
STOC
1993
ACM
13 years 9 months ago
1993
ACM
We consider a class of routing problems on connected graphs G. Initially, each vertex v of G is occupied by a “pebble” which has a unique destination π(v) in G (so that π is...
COR
2006
13 years 5 months ago
2006
Arc Routing Problems on mixed graphs have been modelled in the literature either using just one variable per edge or associating to each edge two variables, each one representing ...