650 search results - page 4 / 130 » Positive graphs |
ENTCS
2008
13 years 9 months ago
2008
Abstract. The biologist R. Thomas has enounced a rule relating multistationnarity in a system of genes interacting in a single cell to the existence of a positive circuit in the re...
COMBINATORICS
2006
13 years 9 months ago
2006
This note contains two results on the distribution of k-crossings and k-nestings in graphs. On the positive side, we exhibit a class of graphs for which there are as many k-noncro...
COCOA
2009
Springer
14 years 1 months ago
2009
Springer
Online social network has developed significantly in recent years as a medium of communicating, sharing and disseminating information and spreading influence. Most of current resea...
GC
2007
Springer
13 years 9 months ago
2007
Springer
We develop Gray code enumeration schemes for geometric graphs in the plane. The considered graph classes include plane straight-line graphs, plane spanning trees, and connected pl...
BVAI
2007
Springer
14 years 4 months ago
2007
Springer
We tested the efficiency of category learning when participants are provided only with pairs of objects, known to belong either to the same class (Positive Equivalence Constraints ...