Seminar series
Date
Thu, 10 May 2012
Time
14:00 -
15:00
Location
Gibson Grd floor SR
Speaker
Professor Mario Bebendorf
Organisation
University of Bonn
We present recent numerical techniques for the treatment of integral formulations of Helmholtz boundary value problems in the case of high frequencies. The combination of $H^2$-matrices with further developments of the adaptive cross approximation allows to solve such problems with logarithmic-linear complexity independent of the frequency. An advantage of this new approach over existing techniques such as fast multipole methods is its stability over the whole range of frequencies, whereas other methods are efficient either for low or high frequencies.