Computational Sciences Center

Announcement

Winter School on Hierarchical Matrices, Germany, Apr 2017

Date: 3rd to 7th of April, 2017
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, 3rd of April, 2017
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, 4th of April, 2017
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, 5th of April, 2017
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, 6th of April, 2017
09:00 - 10:30: H2-Compression (Steffen Börm)
10:30 - 11:00: --- Break ---
11:00 - 12:30: Matrix Exponentials and High Dimension (Lars Grasedyck)
15:00 - 18:00: Exercises
Friday, 7th of April, 2017
09:00 - 10:30: Elliptic PDEs (Wolfgang Hackbusch)
10:30 - 10:45: --- Break ---
10:45 - 11:15:Helmholtz Integral Equation (Steffen Börm)
11:15 - 11:30: --- Break ---
11:30 - 12:15: Parallelization and Eigenvalue Problems (Lars Grasedyck)
12:15 - 12:30: Conclusion

Location

You can find the class room for the course in the building 64 (Olshausenstr. 40). It is room 13 in the ground floor..

How_to_find_the_location

There are four bus stops nearby (see H signs) serviced by the bus lines 

    50, 60S, 61, 62, 81, 91 and 92.