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ICIP
2010
IEEE
14 years 8 months ago
Local two-channel critically sampled filter-banks on graphs
In this paper, we propose two-channel filter-bank designs for signals defined on arbitrary graphs. These filter-banks are local, invertible and critically sampled. Depending on th...
Sunil K. Narang, Antonio Ortega
132
Voted
ENDM
2000
121views more  ENDM 2000»
14 years 10 months ago
Finding the chromatic number by means of critical graphs
We propose a new exact algorithm for finding the chromatic number of a graph G. The algorithm attempts to determine the smallest possible induced subgraph G' of G which has t...
Francine Herrmann, Alain Hertz
72
Voted
ENDM
2008
88views more  ENDM 2008»
14 years 11 months ago
Stars and Bonds in Crossing-Critical Graphs
The structure of all known infinite families of crossing
Petr Hlinený, Gelasio Salazar
COMBINATORICS
2007
55views more  COMBINATORICS 2007»
14 years 11 months ago
The Borodin-Kostochka Conjecture for Graphs Containing a Doubly Critical Edge
We prove that if G is a graph containing a doubly-critical edge and satisfying χ ≥ ∆ ≥ 6, then G contains a K∆.
Landon Rabern
ENTCS
2008
153views more  ENTCS 2008»
14 years 10 months ago
Efficient Conflict Detection in Graph Transformation Systems by Essential Critical Pairs
The well-known notion of critical pairs already allows a static conflict detection, which is important for all kinds of applications and already implemented in AGG. Unfortunately ...
Leen Lambers, Hartmut Ehrig, Fernando Orejas