Announcement
Winter School on Hierarchical Matrices, Germany, Feb/Mar 2018
Date: 26th of Februrary to 2nd of March, 2018
Place: Kiel University, Kiel, Germany
Organizers: Wolfgang Hackbusch, Lars Grasedyck, Steffen Börm
Hierarchical matrices offer an efficient approach to handling non-local operators resulting, e.g., from the discretization of an integral equation or the inversion of a partial differential equation. They rely on a decomposition of a matrix into sub-matrices of low numerical rank that can be represented in factorized form. Using this representation, we can perform operations like the matrix-vector multiplication, matrix multiplication, inversion, factorization, or the evaluation of matrix functions or the solution of certain matrix equations in almost linear complexity.
The winter school is split into two parts:
- lectures present the fundamental concepts and algorithms, while
- practical exercises allow the participants to experience the methods first-hand and discuss specific questions and applications with experts in the field.
Participation is free of charge. Please address questions and registration requests to school@hmatrix.org
Timetable
Monday, 26th of February, 2018 |
09:00 - 10:30: Introduction, Integral Equation 1d (Lars Grasedyck) |
10:30 - 11:00: --- Break --- |
11:00 - 12:30: Clustering, Integral Equations (Steffen Börm) |
15:00 - 18:00: Exercises |
Tuesday, 27th of February, 2018 |
09:00 - 10:00: Cross Approximation (Wolfgang Hackbusch) |
10:00 - 10:30: --- Break --- |
10:30 - 12:00: H-Arithmetics I (Lars Grasedyck) |
15:00 - 18:00: Exercises |
Wednesday, 28th of February, 2018 |
09:00 - 10:00: H-Arithmetics II (Lars Grasedyck) |
10:00 - 10:30: --- Break --- |
10:30 - 12:00: H2-Matrices (Steffen Börm) |
15:00 - 18:00: Exercises |
Thursday, 1st of March, 2018 |
09:00 - 10:30: H2-Compression (Steffen Börm) |
10:30 - 11:00: --- Break --- |
11:00 - 12:30: Numerical Representation of Tensors (Wolfgang Hackbusch) |
15:00 - 18:00: Exercises |
Friday, 2nd of March, 2018 |
09:00 - 09:45:Helmholtz Integral Equation (Steffen Börm) |
09:45 - 10:00: --- Break --- |
10:00 - 11:30: Adaptive Multidimensional Approximation (Lars Grasedyck) |
11:30 - 11:45: --- Break --- |
11:45 - 12:00: Conclusion
|
Location
You can find the class room for the course in the building Olshausenstr. 40 (marked with a red circle).
It is room 13 in the ground floor.

There are four bus stops nearby (see H signs) serviced by the bus lines
- 50 (Direction Botanischer Garten)
- 60S (Direction Botanischer Garten) only during the lecture periods
- 61 (Direction Suchsdorf, Rungholtplatz)
- 62 (Direction Projensdorf, Woltersweg)
- 81 (Direction Botanischer Garten)
- 91 (Direction Friedrichsort, Falckensteiner Str.)
Take the bus to the Universität or Universität/Westring stop