620 search results - page 54 / 124 » The edge-flipping group of a graph |
COMBINATORICA
2008
13 years 9 months ago
2008
Abstract. We relate signs of edge-colorings (as in classical Penrose's result) with "Pfaffian labelings", a generalization of Pfaffian orientations, whereby edges ar...
EJC
2007
13 years 8 months ago
2007
We investigate the historical roots of the field of combinatorics on words. They comprise applications and interpretations in algebra, geometry and combinatorial enumeration. The...
JUCS
2007
13 years 8 months ago
2007
: For modeling real-life situations where not only the intensity of the relation existing between elements but also its polarity is important, we have proposed (see [Marcus and Tat...
VISUALIZATION
1999
IEEE
14 years 1 months ago
1999
IEEE
For types of data visualization where the cost of producing images is high, and the relationship between the rendering parameters and the image produced is less than obvious, a vi...
AINA
2007
IEEE
14 years 3 months ago
2007
IEEE
In hierarchical distributed systems, shared data access can be controlled by assigning user groups single cryptographic keys that allow high level users derive low level keys, but...