Talks and Poster Presentations (without Proceedings-Entry):
N. Popovic, D. Praetorius:
"H-Matrix Techniques for Stray-Field Computations in Computational Micromagnetics";
Talk: 5th International Conference on Large-Scale Scientific Computations,
Sozopol, Bulgarien (invited);
06-06-2005
- 06-10-2005.
English abstract:
A major task in the simulation of micromagnetic phenomena is the
effective computation of the stray-field $\H$ and/or of the
corresponding energy, where $\H$ solves the magnetostatic Maxwell
equations in the entire space. For a given FE magnetization $\m_h$,
the naive computation of $\H$ via a closed formula typically leads
to dense matrices and quadratic complexity with respect to the
number $N$ of elements. To reduce the computational cost, it
is proposed to apply $\HH$-matrix techniques instead. This approach
allows for the computation (and evaluation) of $\H$ in linear
complexity even on adaptively generated (or unstructured) grids.
Electronic version of the publication:
http://www.math.tuwien.ac.at/~dirk/download/preprint/npodpr2.pdf
Created from the Publication Database of the Vienna University of Technology.