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GD
1994
Springer
13 years 11 months ago
Visibility Graphs and Oriented Matroids
We describe a set of necessary conditions for a given graph to be the visibility graph of a simple polygon. For every graph satisfying these conditions we show that a uniform rank ...
James Abello, Krishna Kumar
APPROX
2008
Springer
125views Algorithms» more  APPROX 2008»
13 years 9 months ago
On the Degree Sequences of Random Outerplanar and Series-Parallel Graphs
In order to perform an average-case analysis for specific input distributions one needs to derive and understand properties of a 'typical' input instance. In the case of...
Nicla Bernasconi, Konstantinos Panagiotou, Angelik...
MOC
2000
77views more  MOC 2000»
13 years 7 months ago
Ultraconvergence of the patch recovery technique II
The ultraconvergence property of a gradient recovery technique proposed by Zienkiewicz and Zhu is analyzed for the Laplace equation in the two dimensional setting. Under the assump...
Zhimin Zhang
JCSS
2011
107views more  JCSS 2011»
13 years 2 months ago
The isomorphism conjecture for constant depth reductions
For any class C closed under TC0 reductions, and for any measure u of uniformity containing Dlogtime, it is shown that all sets complete for C under u-uniform AC0 reductions are i...
Manindra Agrawal
ECCC
2010
119views more  ECCC 2010»
13 years 2 months ago
On beating the hybrid argument
The hybrid argument allows one to relate the distinguishability of a distribution (from uniform) to the predictability of individual bits given a prefix. The argument incurs a los...
Bill Fefferman, Ronen Shaltiel, Christopher Umans,...