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COMPGEOM
1996
ACM
15 years 10 months ago
New Lower Bounds for Convex Hull Problems in Odd Dimensions
We show that in the worst case, (ndd=2e;1 +n logn) sidedness queries are required to determine whether the convex hull of n points in IRd is simplicial, or to determine the number ...
Jeff Erickson
WG
1993
Springer
15 years 10 months ago
Dually Chordal Graphs
Recently in several papers, graphs with maximum neighborhood orderings were characterized and turned out to be algorithmically useful. This paper gives a unified framework for cha...
Andreas Brandstädt, Feodor F. Dragan, Victor ...
CORR
2010
Springer
61views Education» more  CORR 2010»
15 years 6 months ago
A weakly stable algorithm for general Toeplitz systems
We show that a fast algorithm for the QR factorization of a Toeplitz or Hankel matrix A is weakly stable in the sense that RT R is close to AT A. Thus, when the algorithm is used ...
Adam W. Bojanczyk, Richard P. Brent, Frank R. de H...
JTAER
2008
80views more  JTAER 2008»
15 years 6 months ago
Web 2.0 as Syndication
There is considerable excitement about the notion of 'Web 2.0', particularly among Internet businesspeople. In contrast, there is an almost complete lack of formal liter...
Roger Clarke
SIAMSC
2008
116views more  SIAMSC 2008»
15 years 6 months ago
A New Asymptotic Preserving Scheme Based on Micro-Macro Formulation for Linear Kinetic Equations in the Diffusion Limit
We propose a new numerical scheme for linear transport equations. It is based on a decomposition of the distribution function into equilibrium and non-equilibrium parts. We also us...
Mohammed Lemou, Luc Mieussens