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» In Praise of Numerical Computation
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COMPUTING
2007
103views more  COMPUTING 2007»
15 years 6 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
CAD
2005
Springer
15 years 6 months ago
Triangular mesh offset for generalized cutter
In 3-axis NC (Numerical Control) machining, various cutters are used and the offset compensation for these cutters is important for a gouge free tool path generation. This paper i...
Su-Jin Kim, Min-Yang Yang
COMPUTING
2004
91views more  COMPUTING 2004»
15 years 6 months ago
A Stabilized Three-field Formulation for Advection-diffusion Equations
In this paper we propose a new stabilized three-field formulation applied to the advection-diffusion equation. Using finite elements with SUPG stabilization in the interior of the...
G. Rapin, G. Lube
COMPUTING
2004
80views more  COMPUTING 2004»
15 years 6 months ago
An Efficient Multigrid Solver based on Distributive Smoothing for Poroelasticity Equations
In this paper, we present a robust distributive smoother in a multigrid method for the system of poroelasticity equations. Within the distributive framework, we deal with a decoup...
R. Wienands, Francisco J. Gaspar, Francisco J. Lis...
COMPUTING
2002
57views more  COMPUTING 2002»
15 years 6 months ago
Problem Dependent Generalized Prewavelets
In this paper, we present a new approach to construct robust multilevel algorithms for elliptic differential equations. The multilevel algorithms consist of multiplicative subspac...
Christoph Pflaum