Sciweavers

1749 search results - page 30 / 350
» Conditional colorings of graphs
Sort
View
ESA
2009
Springer
98views Algorithms» more  ESA 2009»
15 years 11 months ago
Reconstructing 3-Colored Grids from Horizontal and Vertical Projections Is NP-hard
We consider the problem of coloring a grid using k colors with the restriction that in each row and each column has an specific number of cells of each color. In an already classi...
Christoph Dürr, Flavio Guiñez, Mart&ia...
COCOON
2007
Springer
15 years 10 months ago
Connected Coloring Completion for General Graphs: Algorithms and Complexity
An r-component connected coloring of a graph is a coloring of the vertices so that each color class induces a subgraph having at most r connected components. The concept has been w...
Benny Chor, Michael R. Fellows, Mark A. Ragan, Igo...
DM
1999
83views more  DM 1999»
15 years 3 months ago
A characterization of uniquely vertex colorable graphs using minimal defining sets
A defining set (of vertex coloring) of a graph G is a set of vertices S with an assignment of colors to its elements which has a unique completion to a proper coloring of G. We de...
Hossein Hajiabolhassan, Mojtaba L. Mehrabadi, Ruzb...
DAM
2011
14 years 11 months ago
Minimum sum set coloring of trees and line graphs of trees
In this paper, we study the Minimum Sum Set Coloring (MSSC) problem which consists in assigning a set of x(v) positive integers to each vertex v of a graph so that the intersectio...
Flavia Bonomo, Guillermo Durán, Javier Mare...
ECEASST
2010
15 years 1 months ago
Conditional Adaptive Star Grammars
Abstract. The precise specification of software models is a major concern in model-driven design of object-oriented software. In this paper, we investigate how program graphs, a la...
Berthold Hoffmann