226 search results - page 26 / 46 » Lower bounds on the obstacle number of graphs |
STOC
2005
ACM
14 years 8 months ago
2005
ACM
We introduce a new graph parameter, called the Grothendieck constant of a graph G = (V, E), which is defined as the least constant K such that for every A : E R, sup f:V S|V |-1 ...
WINE
2009
Springer
14 years 2 months ago
2009
Springer
We study the geometrical shape of the partitions of the input space created by the allocation rule of a truthful mechanism for multi-unit auctions with multidimensional types and ...
ISAAC
2005
Springer
14 years 1 months ago
2005
Springer
Abstract We study an information-theoretic variant of the graph coloring problem in which the objective function to minimize is the entropy of the coloring. The minimum entropy of ...
COCOON
1999
Springer
14 years 4 days ago
1999
Springer
We investigate various problems related to circulant graphs – finding the shortest path between two vertices, finding the shortest loop, and computing the diameter. These probl...
WDAG
2010
Springer
13 years 6 months ago
2010
Springer
We show that the asymptotic gain in the time complexity when using collision detection depends heavily on the task by investigating three prominent problems for wireless networks,...