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COMPGEOM
2011
ACM
14 years 10 months ago
Reeb graphs: approximation and persistence
Given a continuous function f : X → IR on a topological space X, its level set f−1 (a) changes continuously as the real value a changes. Consequently, the connected components...
Tamal K. Dey, Yusu Wang
APPROX
2011
Springer
242views Algorithms» more  APPROX 2011»
14 years 6 months ago
New Tools for Graph Coloring
How to color 3 colorable graphs with few colors is a problem of longstanding interest. The best polynomial-time algorithm uses n0.2072 colors. There are no indications that colori...
Sanjeev Arora, Rong Ge
WG
2009
Springer
16 years 1 months ago
The Parameterized Complexity of Some Minimum Label Problems
We study the parameterized complexity of several minimum label graph problems, in which we are given an undirected graph whose edges are labeled, and a property Π, and we are ask...
Michael R. Fellows, Jiong Guo, Iyad A. Kanj
CSL
2008
Springer
15 years 8 months ago
The Descriptive Complexity of Parity Games
We study the logical definablity of the winning regions of parity games. For games with a bounded number of priorities, it is wellknown that the winning regions are definable in th...
Anuj Dawar, Erich Grädel
MP
2002
48views more  MP 2002»
15 years 6 months ago
Maximum stable set formulations and heuristics based on continuous optimization
The stability number (G) for a given graph G is the size of a maximum stable set in G. The Lov
Samuel Burer, Renato D. C. Monteiro, Yin Zhang