Sciweavers

COMPUTING
2007
69views more  COMPUTING 2007»
13 years 2 months ago
Path multicoloring with fewer colors in spiders and caterpillars
Aris Pagourtzis, Katerina Potika, Stathis Zachos
COMPUTING
2007
103views more  COMPUTING 2007»
13 years 2 months ago
An algebraic approach for H-matrix preconditioners
Hierarchical matrices (H-matrices) approximate matrices in a data-sparse way, and the approximate arithmetic for H-matrices is almost optimal. In this paper we present an algebrai...
S. Oliveira, F. Yang
COMPUTING
2007
78views more  COMPUTING 2007»
13 years 2 months ago
Calculating lower bounds for caching problems
We present a general method for computing lower bounds for various caching problems. We apply the method to two well known problems, companion caching and weighted caching. For we...
Leah Epstein, Rob van Stee
COMPUTING
2007
108views more  COMPUTING 2007»
13 years 2 months ago
Accurate evaluation of divided differences for polynomial interpolation of exponential propagators
In this paper, we propose an approach to the computation of more accurate divided differences for the interpolation in the Newton form of the matrix exponential propagator ϕ(hA)v...
Marco Caliari
COMPUTING
2007
118views more  COMPUTING 2007»
13 years 2 months ago
The construction of good extensible Korobov rules
In this paper we introduce construction algorithms for Korobov rules for numerical integration which work well for a given set of dimensions simultaneously. The existence of such ...
Josef Dick, Friedrich Pillichshammer, Benjamin J. ...
COMPUTING
2007
127views more  COMPUTING 2007»
13 years 2 months ago
Analyzing a generalized Loop subdivision scheme
In this paper a class of subdivision schemes generalizing the algorithm of Loop is presented. The stencils have the same support as those from the algorithm of Loop, but allow a v...
Ingo Ginkel, Georg Umlauf
COMPUTING
2007
99views more  COMPUTING 2007»
13 years 2 months ago
Surfaces with polar structure
Kestutis Karciauskas, Jörg Peters
COMPUTING
2007
424views more  COMPUTING 2007»
13 years 2 months ago
Anamorphic 3D geometry
An anamorphic image appears distorted from all but a few viewpoints. They have been studied by artists and architects since the early fifteenth century. Computer graphics opens t...
Dianne Hansford, D. Collins